N = int(input())

B = []
M = []
C = []

for i in range(N):
    B.append( list(map(int, input().split(' '))) )
    M.append( int(input()) )
    C.append( sorted(list(map(int, input().split(' ')))) )

def cut(i,b1,b2):
    n = 0
    bamboo = B[i][b1]
    while 0 < bamboo:
        bamboo = bamboo - C[i][n]
        n = n + 1
    n = n - 1
    bamboo = B[i][b2]
    while 0 < bamboo:
        bamboo = bamboo - C[i][n]
        n = n + 1        
    n = n - 1
    return n

for i in range(N):
    n1 = cut(i,0,1)
    n2 = cut(i,1,0)
    print(max(n1,n2))