Which two statements are true about hot spare usage and features? (Choose two.)

A.
A hot spare can hold data NOT in immediate use.

B.
A hot spare can improve the robustness of a RAID-0 volume.

C.
A hot spare is a slice that is functional and available, but NOT in use.

D.
A hot spare is a volume that is functional and available, but NOT in use.

E.
A hot spare is on reserve to substitute for a failed slice in a submirror or RAID-5 volume.