What is the purpose of LCP?

What is the purpose of LCP?

A.
to perform authentication

B.
to negotiate control options

C.
to encapsulate multiple protocols

D.
to specify asynchronous versus synchronous

Explanation:
Link Control Protocol http://www.ietf.org/rfc/rfc1661.txt
In order to be sufficiently versatile to be portable to a wide variety of environments, PPP provides a
Link Control Protocol (LCP). The LCP is used to automatically agree upon the encapsulation format
options, handle varying limits on sizes of packets, detect a looped-back link and other common
misconfiguration errors, and terminate the link. Other optional facilities provided are authentication

of the identity of its peer on the link, and determination when a link is functioning properly and
when it is failing.