def main():
    import sys
    input = sys.stdin.readline

    mod = 1000000007
    N, W, K = map(int, input().split())
    A = list(map(int, input().split()))

    def matmul(A, B):
        C = [[0] * len(B[0]) for _ in range(len(A))]
        for i in range(len(A)):
            for j in range(len(B[0])):
                for k in range(len(B)):
                    C[i][j] = (C[i][j] + A[i][k] * B[k][j]) % mod
        return C

    def matpow(A, p):
        n = len(A)
        B = [[0] * n for _ in range(n)]
        for i in range(n):
            B[i][i] = 1
        while p > 0:
            if p & 1:
                B = matmul(B, A)
            A = matmul(A, A)
            p >>= 1
        return B

    dp = [0] * (2*W+1)
    dp[0] = 1
    for i in range(2*W):
        for a in A:
            if i+a <= 2*W:
                dp[i+a] = (dp[i+a] + dp[i])%mod
    w = dp[W]
    ww = (dp[W*2] - w**2)%mod
    if K == 1:
        print(w)
        exit()

    mat = [[w, ww], [1, 0]]
    vec = [[w], [1]]
    ans = matmul(matpow(mat, K-1), vec)
    print(ans[0][0])


if __name__ == '__main__':
    main()