单选题：There are N processes which share M mutual exclusive resources,

There are N processes which share M mutual exclusive resources, each process can hold W resources at most. Which of the following condition may cause a deadlock? @[D](1)
A. M=2, N=1, W=2
B. M=2, N=2, W=1
C. M=4, N=3, W=2
D. M=4, N=2, W=3





A.M=2, N=1, W=2
B.M=2, N=2, W=1
C.M=4, N=3, W=2
D.M=4, N=2, W=3


答案：D