When expanding a RAID 1/0 LUN using Concatenation what is required?

A.
The added LUNs must be on the same type of disk drive (ATA vs Fibre Channel)

B.
The added LUNs must be RAID 1/0

C.
The added LUNs must be on the same RAID Group

D.
The added LUNs must be the same size