Given the command shown below, which statement is true?
aaa authentication enable default radius local

A.
Console access is authenticated using a RADIUS server.

B.
If a user is unknown to the RADIUS server, the local user account list is used.

C.
If the RADIUS server is unavailable, the local user account list is used.

D.
If an incorrect password is received by the RADIUS server, the local user account list is used.