What are the minimum number of disks per RAID group that are required for the vol create command to create a RAID 4 and RAID DP volume?

A.
RAID 4 = 1 disks, RAID DP = 2 disks

B.
RAID 4 = 2 disks, RAID DP = 2 disks

C.
RAID 4 = 3 disks, RAID DP = 3 disks

D.
RAID 4 = 2 disks, RAID DP = 3 disks