Which two options are Cisco recommendations for enabling Cisco Unified Border Element to perform aCAC? (Choose two.)
A. a voice service VoIP that is configured on the unique Cisco Unified Border Element to enable the CACservice
B. two Cisco Unified Border Element gateways to enable RSVP-based CAC, with the media flow- throughcommand configured
C. Cisco Unified Border Element gateways activating RSVP-based CAC, using the media flow- aroundcommand
D. two Cisco Unified Communications Manager clusters interconnected using a Cisco Unified BorderElement
E. an interconnection of a Cisco Unified Border Element and a Cisco Unified Communications Manager tosupport both voice and video calls