There Are Multiple Types of Disks in a Hard Disk

There are multiple types of disks in a hard disk domain in the OceanStor V3 storage system. If you add one SAS disk to the hard disk domain, the topology will be load balanced as which of the following?

A) Tier 0 disks perform data equalization.
B) All disks in the entire hard disk domain will participate in data equalization.
C) The CK of the target CKG will be released after data equalization is completed.
D) OCeanstor V3 enables cross-engine data equalization.