When the border routers in a transit autonomous system are to be configured, which configuration command should be used if the internal routers within the transit autonomous system have no IGP route to reach the router interface of the EBGP neighbor?
A. neighbor {ip-address} ebgp-multihop {hop-count}
B. neighbor {ip-address} ibgp-multihop {hop-count}
C. neighbor {ip-address} update-source {interface}
D. neighbor {ip-address} next-hop-self
E. sync
F. maximum-paths {paths}
