Your customer is implementing a Unified VNX system leveraging CIFS general purpose file shares. They are implementing all virtual provisioning and FAST features to maximize storage efficiency.

Which recommendations are made when leveraging virtual provisioning?

A.
Either the file system or the underlying LUN in a FAST pool should be thin, but not both.

B.
The underlying LUN in a FAST pool should be thin and have FAST Cache enabled.

C.
Either the file system or the underlying LUN in a FAST pool should be thin, as long as FAST Cache is enabled.

D.
Use thin provisioning at the file level and thick LUNs within a FAST pool of storage.