Which three steps are required when tuning the Cisco TelePresence System 1300 camera cluster?
(Choose three.)
A.
Level the camera cluster.
B.
Tighten and lock down the camera cluster to the frame by using the center screw.
C.
Tighten and lock down the camera cluster to the frame by using the side screws.
D.
Level the individual camera to ensure that it is perfectly vertical.
E.
Level the individual camera to ensure that it is perfectly horizontal.
Explanation: