Once the TCP connection is established, which message type initiates the BGP peering process?（）

A. route selection
B. loop avoidance
C. determining equal cost paths for reachablilty
D. defining the application of other BGP attributes

A. The local router prefers the route with the shortest as-path.
B. The router first verifies that it has a route to the bgp Next Hop IP address.
C. The local router prefers the route from the peer with the lowest peer id address.
D. The local router prefers the route learned from an ebgp peer over a route learned from an ibgp peer.