When configuring CPP, which statement is true?

A.
CPP is enabled in both the Cisco VPN Client and Cisco VPN Concentrator

B.
CPP is enabled on the Cisco VPN Concentrator only

C.
CPP is enabled in the Cisco VPN Client, Cisco VPN Concentrator, and firewall

D.
CPP is enabled in the Cisco VPN Concentrator and firewall