After a recent security breach and a RADIUS failure, an engineer must secure the console port of each enterprise router with a local username and password. Whic...

After a recent security breach and a RADIUS failure, an engineer must secure the console port of each enterprise router with a local username and password.
Which configuration must the engineer apply to accomplish this task?

A. aaa new-model line con 0 password plaintextpassword privilege level 15 B. aaa new-model aaa authorization exec default local aaa authentication login default radius username localuser privilege 15 secret plaintextpassword C. username localuser secret plaintextpassword line con 0 no login local privilege level 15 D. username localuser secret plaintextpassword line con 0 login authentication default privilege level 15