A new vulnerability has been announced which affects several critical VM guests, but no patch is available. Which of the following can the administrator perform to mitigate this risk prior to a patch being released?

A.
Install and update antivirus software on all workstations

B.
Apply all available software patches to VM guests and VM hosts

C.
Disable the affected service if it is found to be unnecessary

D.
Cluster all affected VM guests and implement resource pooling