Which three statements are true about ASM performance and scalability?

Which three statements are true about ASM performance and scalability?

A.
Multiple databases that use the same diskgroup make the best use of space.

B.
A database needs a separate diskgroup for each major tablespace, redo logs, and fast
recovery area.

C.
Multiple databases that use a separate diskgroup for each database make the best use
of space.

D.
Disks in a diskgroup should match in speed and capacity for best performance.

E.
Disks in a diskgroup may be of varying speed and capacity without affecting
performance.

F.
A database seldom needs more than two diskgroups: one for data and the other for a fast
recovery area.