you need to do in order to prevent browsers from generating warnings about certificates when they access the Cisco TelePresence VCS?

What do you need to do in order to prevent browsers from generating warnings about
certificates when they access the Cisco TelePresence VCS?

A.
Install a certificate from a trusted certificate authority.

B.
Install a certificate from the TAC.

C.
Disable certificates on the Cisco TelePresence VCS.

D.
Disable the CPL scripts from running to check security.