What will rediscovering a virtual server do?

What will rediscovering a virtual server do?

A.
It will first remove current information about the server and any guest virtual machines.

B.
It will place the server in maintenance mode.

C.
It will update the configuration information for the server,

D.
It will failover guest virtual machines on the server to another server in the same pool.

E.
It will only work if the server is not in an IaaS zone.

Explanation: