问题:
[单选题]
Suppose there are operations to be performed per hour, where an operation is defined to be either a storage or a retrieval. Furthermore, suppose operations are equally storages and retrievals. If
percent of the storage are performed using single command cycles, then
percent of the storage will be performed using dual-command cycles. Under dwell strategy A, the probability of performing single-command storage from the input point is? ( )
A .
B .
C .
D .