In order to provide the lowest access latency, the optimal place for the system swap file is on

In order to provide the lowest access latency, the optimal place for the system swap file is on:

A.
an external USB 1.1 4200RPM drive with 8MB of Cache.

B.
the fastest storage device available in the system.

C.
a 10K RPM SCSI Drive with 2MB of Cache.

D.
the operating system partition.