Which three components compromise a Cisco NAC Appliance Solution?

Which three components compromise a Cisco NAC Appliance Solution? (Choose three.)

A.
A Linux Server for in-band or out-of-band network admission control

B.
A Linux Server for Centralized Management of network admission servers

C.
A NAC-enabled Cisco Router

D.
A Read-only Client Operating on an endpoints devices

E.
A NAC-enabled Cisco Switch