Which three of these are reasons to deploy media resource access control in a Cisco Unified Communications Manager cluster?

Which three of these are reasons to deploy media resource access control in a Cisco Unified Communications Manager cluster? (Choose three.)

A.
to enable Cisco Unified Communications Manager to share and access the resources that are available across multiple clusters.

B.
to enable hardware and software media resources to coexist within Cisco Unified Communications Manager and enable them to be used with different priorities

C.
to enable Cisco Unified Communications Manager to perform load distribution within a group of dissimilar media resources

D.
to allow media resource access control based on the location of the resource

E.
To enable Cisco Unified Communications Manager to perform load distribution within a group of similar media resources