What step can be taken after installing PowerHA, and before creating a cluster, to ensure that
unauthorized communication between systems using clcomd is prevented?

A.
Remove the rhosts file where PowerHA is installed.

B.
Disable the rhost daemon on all systems PowerHA is installed.

C.
Remove the write permission on the rhosts file installed with PowerHA.

D.
Put the IP addresses of planned cluster nodes in the rhosts file installed with PowerHA.