How should this issue be addressed with minimal impact on the EV server?

Topic 14, Describe creation and maintenance of vault storage

A Veritas Enterprise Vault (EV) implementation has been running for five years. New Vault Store partitions are created as the old Vault Store partitions become full, which is approximately every six months. The retention category is set for three years and Storage Expiry runs regularly. The open Vault Store partition is now full and all available storage devices are in use.

How should this issue be addressed with minimal impact on the EV server?
A . set the current Vault Store Partition to Ready
B . set the first Vault Store status to Ready
C . open the first Vault Store Partition again
D . migrate items older than six months

Answer: C