Which statement about 802.1x port-based authentication is true?

A.
Host are required to have an 802.1x authentication client or utilize PPPoE

B.
Before transmitting data, an 802.1x host must determine the authorization state of the switch

C.
RADIUS is the only supported authentication server type

D.
If a host initiates the authentication process and does not receive a response, it assumes it is notauthorized