Which description of TACACS+ administrator authentication and authorization on the Cisco ASR 5000 is true?
A. The Cisco ASR 5000 uses a privilege-level attribute value pair to restrict users to command sets that correspond to their assigned administrative role.
B. The Cisco ASR 5000 uses a privilege-level information element to restrict users to command sets that correspond to their assigned administrative role.
C. The Cisco ASR 5000 uses an administrator-level attribute value pair to restrict users to command sets that correspond to their assigned administrative role.
D. The Cisco ASR 5000 uses an administrator-level information element to restrict users to command sets that correspond to their assigned administrative role.
