How many video and audio inputs are supported by the Cisco TelePresence 1700 MPX built-in bridge?

How many video and audio inputs are supported by the Cisco TelePresence 1700 MPX built-in bridge?

A.
2 video + 2 audio

B.
4 video + 3 audio

C.
2 video + 1 audio

D.
6 video + 5 audio