You are the new The Tech LTD Trainee. The manager has a question for you: In following statements about Cisco Catalyst 6500

A.
They do not support CEF720 line cards.

B.
All their FRUs are compatible with older Catalyst 6500 chassis.

C.
They require different Cisco IOS code trains than older Catalyst 6500 chassis.

D.
They support all existing supervisors, line cards, switch fabrics, and software releases.