Which names are reserved when custom roles are created in Cisco UCS Manager RBAC?
A. network-admin, network-operator, vdc-admin, vdc-operator, and server-admin
B. cisco, cisco123, cisco-operator, cisco-admin, and root
C. ucs-admin, ucs-operator, server-admin, server-operator, and cisco-admin
D. ucs, ucs123, server-admin, server-operator, and sysroot
