Mark works as a Network Administrator for NetTech Inc. The company has a Windows Server 2008 domain-based network. The network has a Windows Server 2008 member server that works as a Routing and Remote Access Server (RRAS). Mark implements Network Access Protection (NAP) for the network.
Mark wants to configure Point-to-Point Protocol (PPP) authentication on the RRAS server.
Which of the following authentication methods should Mark use to accomplish this task?

A.
EAP

B.
CHAP

C.
SPAP

D.
PAP