Which statements are correct when focusing a Cisco TelePresence system?

A.
Target placement should match the green and red boxes on the screen repectively

B.
Place the large target three feet behind the small target

C.
Place the large target five feet behing the small target

D.
Tune the camera so, that the red and green bars line up as closely as possible

E.
Perform auto-adjust to optimize focus and sharpness