With ControlCenter 5.2, what should be done if 5 new devices are masked to a host HBA and the host C

With ControlCenter 5.2, what should be done if 5 new devices are masked to a host HBA and the host CANNOT see them?

A.
On the host with the active Storage Agent for Symmetrix, run “symcfg discover”

B.
Stop and restart the Storage Agent for Symmetrix

C.
Refresh the VCMDB on that Symmetrix

D.
Rediscover the Symmetrix in ControlCenter using assisted discovery