What command sequence should be used to turn on RADIUS in a router?
A.
aaa new-model
aaa authen login default radius
radius-server host #.#.#.#
radius-server key
B.
aaa new-model
aaa authen login default radius
radius-server host #.#.#.#
C.
radius-server host #.#.#.#
radius-srever key
aaa authen login default radius
aaa new-model
D.
radius-server host #.#.#.#
radius-server use-extended
login radius