import numpy as np
    
T = int(input())

ans = []
for _ in range(T):
    C = list(map(int, input().split()))
    H = list(map(int, input().split()))
    
    M = np.array(H) % C[2]
    for i in range(1, len(C)):
        if M[i] == M[0]:
            continue
        else:
            ans.append("No")
            break
    else:
        ans.append("Yes")

for i in range(0,len(ans)):
    print(ans[i])