Cisco Unified Personal Communicator is being deployed with advanced features such as:

multipoint video
message retrieval
ad-hoc web conferencing

Which component(s) is/are not required?

A.
MeetingPlace or MeetingPlace Express

B.
MeetingPlace Express VT or Cisco Unified Videoconferencing MCU

C.
Cisco Unified Video Advantage

D.
Cisco Unity or Unity Express

E.
Cisco Unified Presence server