Which is an advantage of Sun Cluster 3.2 integration with SMF?

Which is an advantage of Sun Cluster 3.2 integration with SMF?

A.
Sun Cluster will always start faster.

B.
Sun Cluster uses SMF to shut down and reboot nodes.

C.
The administrator can start/stop Sun Cluster using the svcadm command.

D.
An application managed by SMF need not be rewritten to be used as a cluster service.

Explanation: