import java.io.PrintWriter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Scanner;
import java.math.*;

class Main {
	public static void main(String[] args) throws Exception {
		new Main().run();
	}
	
	long[][] mul(long[][] a,long[][] b){
		long[][] ret=new long[a.length][b[0].length];
		for(int i=0;i<a.length;++i){
			for(int j=0;j<b[i].length;++j){
				for(int k=0;k<a[i].length;++k){
					ret[i][j]+=a[i][k]*b[k][j]%M;
					ret[i][j]%=M;
				}
			}
		}
		return ret;
	}
	
	long[][] pow_mat(long[][] a,long n){
		long[][] ret=new long[a.length][a.length];
		ret[0][0]=ret[1][1]=1;
		for(;n>0;n>>=1,a=mul(a,a))if(n%2==1)ret=mul(ret,a);
		return ret;
	}
	
	long pow(long a,long n){
		long ret=1;
		for(;n>0;n>>=1,a=a*a%M)if(n%2==1)ret=ret*a%M;
		return ret;
	}
	
	long inv(long a){
		return pow(a,M-2);
	}
	
	final long M=(long)1e9+7;
	
	void run() {
		Scanner sc=new Scanner(System.in);
		int N=sc.nextInt();
		int W=sc.nextInt();
		long K=sc.nextLong();
		int[] A=new int[N];
		for(int i=0;i<N;++i){
			A[i]=sc.nextInt();
		}
		long[] a=new long[2*W+1];
		a[0]=1;
		for(int i=0;i<a.length;++i){
			for(int j=0;j<A.length;++j){
				if(i+A[j]<a.length){
					a[i+A[j]]+=a[i];
					a[i+A[j]]%=M;
				}
			}
		}
		long u=a[W];
		long v=a[2*W]-u*u%M;
		long[][] mat={{u,v},{1,0}};
		mat=pow_mat(mat,K);
		long ans=mat[0][0];
		System.out.println((ans%M+M)%M);
	}

	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}

}