An administrator installs FAST Cache enabler on a VNX system. When the administrator opens
the Properties page of an existing Classic LUN, FAST Cache is not enabled for the LUN.
Why is FAST Cache not enabled on this LUN?

A.
FAST Cache is not enabled by default on LUNs that existed before FAST Cache was installed.

B.
Existing Classic LUNs need to be removed from the Storage Group before FAST Cache is
enabled.

C.
FAST Cache is not enabled by default on RAID 5 LUNs.

D.
FAST Cache cannot be enabled when SP read/write cache is disabled for the LUN.