Which option describes the default roles available to RBAC on Cisco Nexus switches?

Which option describes the default roles available to RBAC on Cisco Nexus switches?

A.
admin, operator, network-admin, and network-operator

B.
admin, read-only, network-admin, and network-operator

C.
vdc-admin, vdc-operator, network-admin, and network-operator

D.
vdc-admin, vdc-operator, network-admin, and network-operator (for Nexus 7000) and networkadmin and network-operator (for other Nexus switches)

E.
admin and read-only