单选题：Consider a system with a memory-access time of 100 nanoseconds a

Consider a system with a memory-access time of 100 nanoseconds and an average page-fault service time of 25 milliseconds. If the effective access time is 105 nanoseconds, then we can allow only less than one memory access out of __________ to page fault. @[C](1)
A. 250000
B. 2500000
C. 5000000
D. 10000000




A.250000
B.2500000
C.5000000
D.10000000


答案：C