Which two [2] configurations are valid Raid-5’s?

A.
6 FC disks

B.
4 ATA disks

C.
17 FC disks

D.
4 FC disks and 1 ATA disk

Explanation:
RAID Groups can not intermix FC and ATA within a single Raid Group, thus D is wrong. A single raid group can only have 16 disks, thus C is incorrect.