BGP Is an Enhanced Distance-Vector Routing Protocol

Multiple Choice

BGP is an enhanced distance-vector routing protocol. Which is the major reason for this?

A) BGP does not accept the routes whose AS_Path attribute contains the local AS number.
B) Nexthop is a well-known mandatory attribute of BGP routes.
C) The AS_Path attribute records all the ASs that a BGP route passes through on the transmission path. In route selection rules, a route with a shorter AS_Path is preferred.
D) The AS_Path attribute records all the ASs that a BGP route passes through on the transmission path. In route selection rules, a route with a shorter AS_Path is preferred, and the AS_Path attribute is also checked in IBGP.