Which command allows IBGP to scale within an AS?
A. neighbor {ip-address} update-source loopback0
B. neighbor {ip-address} route-reflector-client
C. neighbor {ip-address} ebgp-multihop 2
D. neighbor {ip-address} next-hop-self
E. neighbor {ip-address} remote-as {confederation-id}
F. no sync
