What are the different security options” to upgrade the hosts with UM ?

What are the different security options to upgrade the hosts with UM ? (choose 3)

A.
Important

B.
Critical

C.
Moderate

D.
security

E.
general

Explanation:
I didn’t know this one, I answered B, D, E, and the answer is here on page 109
http://pubs.vmware.com/vsphere-50/topic/com.vmware.ICbase/PDF/vsphere-update-manager-50-install-administration-guide.pdf

Severity of the update. For hosts, the severity status might be Critical, General, Security,
and so on. For virtual machines, the severity might be Critical, Important, Moderate, and
so on.