If 3n auto attendant has a numeric ID of 543 and the Cisco TelePresence MCU has a prefix of 62 and a domain of cisco.demo, which two of these will be registered on the Cisco Telepresence VCS, assuming that SIP and H.323 registration have been selected? (Choose two.) Select exactly 2 answer(s) from the following:

A.
543

B.
62543@dsco.demo

C.
543@cisco.demo

D.
62543

E.
543@362.cisco.demo