import sys
input = sys.stdin.readline

def Matprod(A, B, mod, N):
    temp = [0] * N*N
    for i in range(N):
        for j in range(N):
            ij = i * N + j
            for k in range(N):
                temp[ij] += A[i*N+k] * B[k*N+j]
                temp[ij] %= mod
    return temp

def Matpow_Linear(A, M, mod, N):
    Mat = [0] * N*N
    for i in range(N):
        Mat[i*N+i] = 1
         
    while M:
        if M & 1:
            Mat = Matprod(Mat, A, mod, N)
        A = Matprod(A, A, mod, N)
        M >>= 1
    return Mat  


N, W, K = map(int, input().split())
mod = 10 ** 9 + 7
A = list(map(int, input().split()))
dp = [0] * (2 * W + 1)
dp[0] = 1
for i in range(1, 2 * W + 1):
    for a in A:
        if i - a >= 0:
            dp[i] += dp[i - a]
            dp[i] %= mod

f1 = dp[W]
f2 = dp[2 * W] - f1**2
f2 %= mod
F = [f1, f2, 1, 0]

F = Matpow_Linear(F, K - 1, mod, 2)
ans = F[0] * f1 + F[1]
print(ans%mod)