Which process must the administrator use to accomplish this?

An administrator needs to create an alarm to monitor when a specific ESXi host in an HA/DRS
cluster becomes disconnected from other vSphere components like HA agents or the vCenter
server.
Which process must the administrator use to accomplish this?

A.
Define a Host type alarm, monitor for the event Cannot connect host, and supply a conditional
trigger on Host name equal to a specific label.

B.
Define a Cluster type alarm, monitor for the event Cannot connect host, and supply a
conditional trigger on Host name equal to a specific label.

C.
Define a Cluster type alarm, monitor for the event Host status changed, and supply a specific
label for each host.

D.
Define a Host type alarm, monitor for the condition Host status changed, and supply a specific
label for each host.

Explanation: