Which two statements are true in this scenario for the features enabled for ASM?

You are managing an Oracle 11 g database with ASM storage, for which the COMPATIBLE
initialization parameter is set to 11.1.0. In the ASM instance, the COMPATIBLE.RDBMS attribute
for the disk group is set to 10.2 and the COMPATIBLE .ASM attribute is set to 11.1.
Which two statements are true in this scenario for the features enabled for ASM? (Choose two.)

A.
The ASM-preferred mirror read feature is enabled.

B.
The ASM supports variable sizes for extents of 1. 8. and 64 allocation units.

C.
The ASM disk is dropped immediately from a disk group when it becomes unavailable.

D.
The RDBMS always reads the primary copy of a mirrored extent of the ASM disk group.