If the user purchases the Cisco TelePresence Touch panel, which two statements are true? (Choose two.)
A. Both the TRC5 remote control and the Touch panel can be used simultaneously.
B. Either the TRC5 remote control or the Touch panel can be used, but not both simultaneously.
C. The Touch panel should be used to make calls, but the TRC5 remote control should be used to configure the unit.
D. The web interface can be used to configure the unit.