Why does the FRA disk group initially have more free space even though both DATA and FRA disk groups are provided with the same size?

View the Exhibit and examine the disk groups created at the time of migrating the database
storage to Automatic Storage Management (ASM).
Why does the FRA disk group initially have more free space even though both DATA and
FRA disk groups are provided with the same size?

A.
Because the FRA disk group will not support dynamic rebalancing

B.
Because the FRA disk group is not configured to support mirroring

C.
Because disks in the FRA disk group are not formatted at this stage

D.
Because the FRA disk group will support only a single size of allocation unit