What is correct when configuring RAID-6 with 5772+ Enginuity?

A.
Must combine 14+2 RAID-6 with 6+2 RAID-6

B.
Mirrored volumes are required to be in the same DAE

C.
Mirrored volumes or RAID group volumes can co-exist on drives with different speeds

D.
RAID-5 and RAID-6 can co-exist in same system