What is a feature of Delta Set Extension pools?

A.
An SRDF/A group can be associated with different pools, regardless of protection or emulation
type.

B.
DSE pools can be shared between multiple SRDF/A groups.

C.
DSE Pools are only required at the R1 side.

D.
RAID5 with 15krpm disks is recommended for optimal performance of a DSE pool.