单选题：In a computer system, a Best-Fit dynamic storage allocation stra

In a computer system, a Best-Fit dynamic storage allocation strategy is used. The initial free main memory is 55MB. In case there is following allocation and release sequence:

allocate 15MB, allocate 30MB, release 15MB, allocate 8MB, allocate 6MB

Now the largest size of free block in main memory is ______.@[B](1)
A. 7MB
B. 9MB
C. 10MB
D. 15MB





A.7MB
B.9MB
C.10MB
D.15MB


答案：B