Which statement describes the Hard-lock VIP of a Cisco TelePresence Multipoint conference?

A.
No Cisco TelePresence endpoint is allowed to join without the VIP approval..

B.
No Cisco TelePresence endpoint is allowed to join until the designated VIP Cisco TelePresence endpoint joins.

C.
VIP video is switched out temporarily with voice-activated switching; VIP video is switched back automatically.

D.
VIP video is always displayed at all sites and is never switched out