Which two statements about CHAP are true? (Choose two.)
A. The CHAP negotiation phase begins after the LCP phase is complete.
B. Each authenticating router has a unique username and password.
C. It uses a three-way handshake to identify the peer router.
D. The local MD5 secret is transmitted to the peer for authentication.
E. The LCP phase begins after CHAP authentication is complete.
