单选题：One common data can allow at most 3 processes sharing it simulta

One common data can allow at most 3 processes sharing it simultaneously. Now assume that 5 processes try to access it. Please choose the initial value for a semaphore for protecting this data. @[B](1)
A. 5
B. 3
C. 1
D. 0




A.5
B.3
C.1
D.0


答案：B