Which capability is allowed when you configure RADIUS CoA on the ISG?

A.
The ISG does not need to use an encryption key when communicating to the AAA server
(Common Authority).

B.
The AAA server can notify the ISG to change the policies assigned to a subscriber (Change of
Authorization).

C.
Based on subscriber policies, the ISG can update the subscriber’s authorization settings on the
AAA (Change of Authority).

D.
The ISG can query the AAA for a list of applications (traffic types) that the subscriber is
authorized to pass into the network (Control of Applications).