Which three statements are true about Automatic Storage Manageme

Which three statements are true about Automatic Storage Management(ASM.in Grid Infrastructure 11g R2?

A.ASM mirrors at the allocation unit(AU. level for Disk Groups with High Redundancy.

B.ASM load balancing is optional when External Redundancy is set for a Disk Group.

C.ASM load balances Disk Group content across all ASM disks in that Disk Group.

D.ASM load balances Disk Group content across a maximum of eight ASM disks in that Disk Group.

E.An ASM file is always mirrored based on the redundancy attribute of the Disk Group containing that file.

正确答案是BCE