Which application adds advanced video conferencing capabilities to Cisco Business Edition 6000?

Which application adds advanced video conferencing capabilities to Cisco Business Edition 6000?

A.
Cisco VCS

B.
Cisco Unified Communications Manager

C.
Cisco Unified Communications Manager IM and Presence

D.
Cisco Unity Connection

Explanation:
Business Edition 6000 for Account Managers (BE6KAM)PEC Training Advanced Video Offer