Refer to the Exhibit.

An administrator has a DRS/HA clusters with five ESXi 5.x hosts. When the administrator tries to start a new Web server virtual machine, an administrator is displayed saying insufficient resources exist for HA.
Based on the HA configuration in the exhibit, which two changes can resolve the issue? (Choose two)

A.
Specify one of the ESXi hosts to be a failover host

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

C.
Modify the percentage of reserved resources to 30 percent

D.
Add a ESXi host to the cluster