How are the RAID groups affected by this command?

A customer has an aggregate, aggr1_01 with three RAID groups: rg0, rg1, and rg2. Each RAID group has 15 disks, and the aggregate’s maximum RAID group size is set to 18 disks.

The customer adds three additional disks to the aggregate using the following command:

storage aggregate add-disks Caggregate aggr1_01 Cdiskcount 3

How are the RAID groups affected by this command?
A . The three disks are added to RAID group rg0.
B . Each RAID group receives one additional disk.
C . The three disks are added to RAID group rg2.
D . The disks are added to a new RAID group rg3.

Answer: C