#include <bits/stdc++.h>
using namespace std;

inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

typedef long long ll;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<long long> VL;
typedef vector<vector<long long>> VVL;
typedef vector<string> VS;
typedef pair<int, int> P;
typedef tuple<int,int,int> tpl;

#define ALL(a)  (a).begin(),(a).end()
#define SORT(c) sort((c).begin(),(c).end())
#define REVERSE(c) reverse((c).begin(),(c).end())
#define LB(a,x) lower_bound((a).begin(), (a).end(), x) - (a).begin()
#define UB(a,x) upper_bound((a).begin(), (a).end(), x) - (a).begin()

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define RFOR(i,a,b) for(int i=(a)-1;i>=(b);--i)
#define RREP(i,n) RFOR(i,n,0)

#define en "\n"

constexpr double EPS = 1e-9;
constexpr double PI  = 3.141592653589793238462643383279;
constexpr int INF = 2147483647;
constexpr long long LINF = 1LL<<60;
constexpr long long MOD = 1000000007; // 998244353

#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }

vector<vector<long long>> matdot(vector<vector<long long>>& A, vector<vector<long long>>& B){
    int n = A.size(), m = B.size(), l = B[0].size();
    vector<vector<long long>> ret(n, vector<long long>(l,0));

    for(int i=0; i<n; i++)
        for(int j=0; j<l; j++)
            for(int k=0; k<m; k++)
                (ret[i][j] += A[i][k]*B[k][j]) %= MOD;

    return ret;
}

void matpow(vector<vector<long long>>& dp, vector<vector<long long>>& mat, long long k){
    while(k){
        if(k & 1) dp = matdot(mat, dp);
        mat = matdot(mat, mat);
        k >>= 1;
    }
}

int main(void){
    ll N,W,K; cin >> N >> W >> K;
    VL A(N); REP(i,N) cin >> A[i];
    ll S,T;
    VL dp2(2*W+1,0); dp2[0] = 1;
    REP(i,2*W){
        if(i==W) continue;
        REP(j,N) if(i+A[j]<=2*W) (dp2[i+A[j]] += dp2[i]) %= MOD;
    }
    S = dp2[W]; T = dp2[2*W];

    VVL dp(2,VL(1)), mat(2,VL(2,0));
    dp[0][0] = S; dp[1][0] = 1;
    mat[0][0] = S; mat[0][1] = T; mat[1][0] = 1;
    matpow(dp, mat, K-1);
    cout << (K==1 ? S : dp[0][0]) << en;
    return 0;
}