With regard to read cache utilization, which of the following statement is true?

With regard to read cache utilization, which of the following statement is true?

A.
Read cache provides the best performance in random I/O environments.

B.
Turn off read caching on LUNs with very random read environments and/or sequential access.

C.
Read caching should never be turned off as it gives the best performance in all host-access situations.

D.
Wherever write cache is turned off read cache must also be turned off to balance out the workload of the CLARiiON.