Which statement is true in regards to Cisco Unified MeetingPlace video?

Which statement is true in regards to Cisco Unified MeetingPlace video?

A.
MeetingPlace standards-based video and WebEx HQ/HD video do not interoperate.

B.
Customers must run both MeetingPlace standards-based video and WebEx HQ/HD video for it to run properly.

C.
Only the active speaker will show in the thumbnail.

D.
MeetingPlace has not yet moved to high definition.