A.The IBGP routers must always be fully meshed.
B.The IBGP routers can be in a different AS.
C.The IBGP routers must be directly connected.
D.TThe IBGP routers do not need to be directly connected.
E.None of the other alternatives apply are true

A.RouterA received a hello packet with mismatched metric-calculation mechanisms
B.RouterA received a hello packet with mismatched authentication parameters
C.RouterA will form an adjacency with RouterB
D.RouterA received a hello packet with mismatched autonomous system numbers
E.RouterA received a hello packet with mismatched hello timers
F.RouterA will not form an adjacency with RouterB