单选题

若干个等待访问磁盘者依次要访问的磁道为22,46,43,7,82,14,7...

Question

若干个等待访问磁盘者依次要访问的磁道为22,46,43,7,82,14,79,当前磁头位于43号柱面，若用最短寻道时间优先磁盘调度算法，则访问序列为?

A. 22, 46, 43, 7, 82, 14, 79

B.

43, 46, 22, 14, 7, 79, 82

C. 43, 46, 79, 82, 22, 14, 7

D. 43, 46, 79, 82, 7, 14, 22

E. 43, 46, 79, 82, 14, 7, 22