import sys
input = sys.stdin.readline

T=int(input())
for tests in range(T):
    N,M=map(int,input().split())
    A=list(map(int,input().split()))

    if max(A)>M:
        print("No")
        continue

    for i in range(1,N):
        kk=A[i-1]+A[i]

        if M<=kk<=2*M:
            True
        else:
            print("No")
            break
    else:
        print("Yes")