#[doc = " https://github.com/hatoo/competitive-rust-snippets"]
#[allow(unused_imports)]
use std::cmp::{max, min, Ordering};
#[allow(unused_imports)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque};
#[allow(unused_imports)]
use std::iter::FromIterator;
#[macro_export]
macro_rules ! chmax { ( $ x : expr , $ ( $ v : expr ) ,+ ) => { $ ( $ x = std :: cmp :: max ( $ x ,$ v ) ; ) + } ; }
#[macro_export]
macro_rules ! chmin { ( $ x : expr , $ ( $ v : expr ) ,+ ) => { $ ( $ x = std :: cmp :: min ( $ x ,$ v ) ; ) + } ; }
#[macro_export]
macro_rules ! max { ( $ x : expr ) => ( $ x ) ; ( $ x : expr , $ ( $ xs : expr ) ,+ ) => { std :: cmp :: max ( $ x , max ! ( $ ( $ xs ) ,+ ) ) } ; }
#[macro_export]
macro_rules ! min { ( $ x : expr ) => ( $ x ) ; ( $ x : expr , $ ( $ xs : expr ) ,+ ) => { std :: cmp :: min ( $ x , min ! ( $ ( $ xs ) ,+ ) ) } ; }
#[macro_export]
macro_rules ! dvec { ( $ t : expr ; $ len : expr ) => { vec ! [ $ t ; $ len ] } ; ( $ t : expr ; $ len : expr , $ ( $ rest : expr ) ,* ) => { vec ! [ dvec ! ( $ t ; $ ( $ rest ) ,* ) ; $ len ] } ; }
#[doc = " main"]
#[allow(unused_imports)]
use std::io::{stdin, stdout, BufWriter, Write};
#[macro_export]
macro_rules ! input { ( source = $ s : expr , $ ( $ r : tt ) * ) => { let mut parser = Parser :: from_str ( $ s ) ; input_inner ! { parser , $ ( $ r ) * } } ; ( parser = $ parser : ident , $ ( $ r : tt ) * ) => { input_inner ! { $ parser , $ ( $ r ) * } } ; ( new_stdin_parser = $ parser : ident , $ ( $ r : tt ) * ) => { let stdin = std :: io :: stdin ( ) ; let reader = std :: io :: BufReader :: new ( stdin . lock ( ) ) ; let mut $ parser = Parser :: new ( reader ) ; input_inner ! { $ parser , $ ( $ r ) * } } ; ( $ ( $ r : tt ) * ) => { input ! { new_stdin_parser = parser , $ ( $ r ) * } } ; }
#[macro_export]
macro_rules ! input_inner { ( $ parser : ident ) => { } ; ( $ parser : ident , ) => { } ; ( $ parser : ident , $ var : ident : $ t : tt $ ( $ r : tt ) * ) => { let $ var = read_value ! ( $ parser , $ t ) ; input_inner ! { $ parser $ ( $ r ) * } } ; }
#[macro_export]
macro_rules ! read_value { ( $ parser : ident , ( $ ( $ t : tt ) ,* ) ) => { ( $ ( read_value ! ( $ parser , $ t ) ) ,* ) } ; ( $ parser : ident , [ $ t : tt ; $ len : expr ] ) => { ( 0 ..$ len ) . map ( | _ | read_value ! ( $ parser , $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ parser : ident , chars ) => { read_value ! ( $ parser , String ) . chars ( ) . collect ::< Vec < char >> ( ) } ; ( $ parser : ident , usize1 ) => { read_value ! ( $ parser , usize ) - 1 } ; ( $ parser : ident , $ t : ty ) => { $ parser . next ::<$ t > ( ) . expect ( "Parse error" ) } ; }
use std::io;
use std::io::BufRead;
use std::str;
pub struct Parser<R> {
    reader: R,
    buf: Vec<u8>,
    pos: usize,
}
impl Parser<io::Empty> {
    pub fn from_str(s: &str) -> Parser<io::Empty> {
        Parser {
            reader: io::empty(),
            buf: s.as_bytes().to_vec(),
            pos: 0,
        }
    }
}
impl<R: BufRead> Parser<R> {
    pub fn new(reader: R) -> Parser<R> {
        Parser {
            reader: reader,
            buf: vec![],
            pos: 0,
        }
    }
    pub fn update_buf(&mut self) {
        self.buf.clear();
        self.pos = 0;
        loop {
            let (len, complete) = {
                let buf2 = self.reader.fill_buf().unwrap();
                self.buf.extend_from_slice(buf2);
                let len = buf2.len();
                if len == 0 {
                    break;
                }
                (len, buf2[len - 1] <= 0x20)
            };
            self.reader.consume(len);
            if complete {
                break;
            }
        }
    }
    pub fn next<T: str::FromStr>(&mut self) -> Result<T, T::Err> {
        loop {
            let mut begin = self.pos;
            while begin < self.buf.len() && (self.buf[begin] <= 0x20) {
                begin += 1;
            }
            let mut end = begin;
            while end < self.buf.len() && (self.buf[end] > 0x20) {
                end += 1;
            }
            if begin != self.buf.len() {
                self.pos = end;
                return str::from_utf8(&self.buf[begin..end]).unwrap().parse::<T>();
            } else {
                self.update_buf();
            }
        }
    }
}
#[allow(unused_macros)]
macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } }
#[doc = " https://github.com/hatoo/competitive-rust-snippets"]
const BIG_STACK_SIZE: bool = true;
#[allow(dead_code)]
fn main() {
    use std::thread;
    if BIG_STACK_SIZE {
        thread::Builder::new()
            .stack_size(32 * 1024 * 1024)
            .name("solve".into())
            .spawn(solve)
            .unwrap()
            .join()
            .unwrap();
    } else {
        solve();
    }
}
fn solve() {
    let out = stdout();
    let mut out = BufWriter::new(out.lock());
    input!{
        n:usize,w:usize,k:i64,
        a:[usize;n]
    }
    let mo = 1_000_000_007;
    let mut dp: Vec<Mod> = vec![0.into();500];
    dp[0] = 1.into();
    for i in 0..2*w {
        for j in 0..n {
            let x = dp[i];
            dp[i+a[j]] += x;
        }
    }
    let dpw = dp[w];
    let dp2w = dp[2*w] - dpw*dpw;
    let init = Matrix { v: vec![
        vec![1],
        vec![0],
    ]};
    let A = Matrix { v: vec![
        vec![dpw.0, dp2w.0],
        vec![1, 0],
    ]};
    let ans = A.pow(k as u64, 1_000_000_007) * init;
    writeln!(out,"{}",ans.v[0][0]);
}
pub mod modular {
    const M: i64 = 1_000_000_007;
    #[derive(Debug, Clone, Copy, Default, PartialOrd, Ord, PartialEq, Eq)]
    pub struct Mod(pub i64);
    impl ::std::fmt::Display for Mod {
        fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
            write!(f, "{}", self.0)
        }
    }
    impl Mod {
        pub fn new(v: i64) -> Mod {
            Mod((v + M) % M)
        }
        pub fn pow(self, mut r: i64) -> Mod {
            let mut k = self;
            let mut ret = 1.into();
            while r > 0 {
                if r % 2 != 0 {
                    ret = ret * k;
                }
                r /= 2;
                k = k * k;
            }
            ret
        }
        pub fn recip(self) -> Mod {
            self.pow(M - 2)
        }
    }
    use std::ops::*;
    impl<T: Into<Mod>> Add<T> for Mod {
        type Output = Mod;
        fn add(self, rhs: T) -> Self::Output {
            Mod::new(self.0 + rhs.into().0)
        }
    }
    impl<T: Into<Mod>> AddAssign<T> for Mod {
        fn add_assign(&mut self, rhs: T) {
            *self = *self + rhs;
        }
    }
    impl<T: Into<Mod>> Sub<T> for Mod {
        type Output = Mod;
        fn sub(self, rhs: T) -> Self::Output {
            Mod::new(self.0 - rhs.into().0 + M)
        }
    }
    impl<T: Into<Mod>> SubAssign<T> for Mod {
        fn sub_assign(&mut self, rhs: T) {
            *self = *self - rhs;
        }
    }
    impl<T: Into<Mod>> Mul<T> for Mod {
        type Output = Mod;
        fn mul(self, rhs: T) -> Self::Output {
            Mod::new(self.0 * rhs.into().0)
        }
    }
    impl<T: Into<Mod>> MulAssign<T> for Mod {
        fn mul_assign(&mut self, rhs: T) {
            *self = *self * rhs;
        }
    }
    impl<T: Into<Mod>> Div<T> for Mod {
        type Output = Mod;
        fn div(self, rhs: T) -> Self::Output {
            self * rhs.into().recip()
        }
    }
    impl<T: Into<Mod>> DivAssign<T> for Mod {
        fn div_assign(&mut self, rhs: T) {
            *self = *self / rhs;
        }
    }
    impl Neg for Mod {
        type Output = Mod;
        fn neg(self) -> Self::Output {
            Mod(0) - self
        }
    }
    impl<T: ::std::convert::Into<i64>> ::std::convert::From<T> for Mod {
        fn from(v: T) -> Self {
            Mod::new(v.into())
        }
    }
}
pub type Mod = modular::Mod;
pub mod matrix {
    #[derive(Clone)]
    pub struct Matrix {
        pub v: Vec<Vec<i64>>,
    }
    impl Matrix {
        pub fn identity(n: usize) -> Self {
            let mut v = vec![vec![0; n]; n];
            for i in 0..n {
                v[i][i] = 1;
            }
            Matrix { v: v }
        }
        pub fn m(&self) -> usize {
            self.v.len()
        }
        pub fn n(&self) -> usize {
            self.v[0].len()
        }
        pub fn mul_rem(&self, other: &Self, mo: i64) -> Self {
            assert!(self.n() == other.m());
            let K = self.n();
            let M = self.m();
            let N = other.n();
            let mut r = vec![vec![0; N]; M];
            for i in 0..M {
                for j in 0..N {
                    let mut v = 0;
                    for k in 0..K {
                        v += self.v[i][k] * other.v[k][j] % mo;
                        v %= mo;
                    }
                    r[i][j] = v;
                }
            }
            Matrix { v: r }
        }
        pub fn pow(&self, k: u64, mo: i64) -> Self {
            assert!(self.m() == self.n());
            let mut k = k;
            let mut x = Self::identity(self.m());
            let mut y = self.clone();
            while k > 0 {
                if k & 1 > 0 {
                    x = y.clone() * x;
                    x %= mo;
                }
                y = y.mul_rem(&y, mo);
                y %= mo;
                k >>= 1;
            }
            x
        }
    }
    use std::ops::*;
    impl Add for Matrix {
        type Output = Self;
        fn add(self, other: Self) -> Self {
            let mut r = self.v.clone();
            for i in 0..self.m() {
                for j in 0..self.n() {
                    r[i][j] += other.v[i][j];
                }
            }
            Matrix { v: r }
        }
    }
    impl Sub for Matrix {
        type Output = Self;
        fn sub(self, other: Self) -> Self {
            let mut r = self.v.clone();
            for i in 0..self.m() {
                for j in 0..self.n() {
                    r[i][j] -= other.v[i][j];
                }
            }
            Matrix { v: r }
        }
    }
    impl Mul for Matrix {
        type Output = Self;
        fn mul(self, other: Self) -> Self {
            assert!(self.n() == other.m());
            let K = self.n();
            let M = self.m();
            let N = other.n();
            let mut r = vec![vec![0; N]; M];
            for i in 0..M {
                for j in 0..N {
                    let mut v = 0;
                    for k in 0..K {
                        v += self.v[i][k] * other.v[k][j];
                    }
                    r[i][j] = v;
                }
            }
            Matrix { v: r }
        }
    }
    impl Rem<i64> for Matrix {
        type Output = Self;
        fn rem(self, mo: i64) -> Self {
            let mut r = self.v.clone();
            for i in 0..self.m() {
                for j in 0..self.n() {
                    r[i][j] %= mo;
                }
            }
            Matrix { v: r }
        }
    }
    impl RemAssign<i64> for Matrix {
        fn rem_assign(&mut self, mo: i64) {
            for i in 0..self.m() {
                for j in 0..self.n() {
                    self.v[i][j] %= mo;
                }
            }
        }
    }
}
pub type Matrix = matrix::Matrix;