# your code goes here
t= int(input())
for i in range(t):
    n,q = map(int,input().split(" "))
    l=list(map(int,input().strip().split(' ')))
    for j in range(q):
        count=0
        count1=0
        add=0
        k=int(input().strip())
        t=sorted(l,reverse=True)
        r=list(z-k for z in t)
        for w in r:
            if w>=0:
                count= count+1
            else:
                add=add+abs(w)
                if add<(n-count):
                    count1=count1+1
        print(count+count1)
 
 
 

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7 1
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