Based on the HA configuration shown in the exhibit, how can this issue be resolved

Exhibit:

An administrator has a DRS/HA cluster with 5 ESX 4 Hosts. When trying to start a new
web server Virtual Machine, an error is displayed saying insufficient resources exist for
HA. Based on the HA configuration shown in the exhibit, how can this issue be resolved
(Choose Two)?

A.
Specify one of the servers to be a failover host

B.
Allow virtual machines to be powered on even if they violate HA availability
constraints.

C.
Add another server to the cluster.

D.
Change the percentage of resources to reserve to 30%.

Explanation:
vSphere Help – Adding Inventory Objects : Editing a Cluster : Configure VMware HA
Options

Select an Admission Control option.

Prevent VMs from being powered on if they violate availability constraints.
Allow VMs to be powered on even if they violate availability constraints. Select this
option if you want the capability of powering on more virtual machines than the VMware
HA failover level can support. If you select this option and power on enough virtual
machines to violate failover, the cluster icon turns red and failover is no longer
guaranteed. [B above]

Adding an additional host to the cluster will increases overall cluster resources, and
should allow the VM to be started. [C above]