An engineer is deploying a Cisco TelePresence Touch 8 controller for a Cisco TelePresence SX20. Which two steps are required as part of this process?

A.	Connect the cable from the Touch 8 controller to the Cisco TelePresence SX20.
B.	Connect the Touch 8 controller to the power adapter and connect the adapter to the network.
C.	Connect the Touch 8 controller to the secondary network adapter on the Cisco TelePresence SX20.
D.	Reboot the Cisco TelePresence SX20.
E.	Hold the mute button down for 20 seconds while you power on the Touch 8 controller.