Observe the diagram. RTC is the hub router and RTA and RTB are the spokes. There are
no virtual circuits between the spoke locations. What is needed to successfully route traffic
to the 11.11.11.0/24 network from RTA?

A.
The neighbor 10.10.10.1 next-hop-self command on RTA.

B.
The neighbor 10.10.10.1 next-hop-self command on RTB.

C.
The neighbor 10.10.10.1 next-hop-self command on RTC.

D.
Nothing is required. This is the default behavior on this topology.

Explanation:
The next-hop-self command must be used on RTC to specify RTC’s IP address as the
source address in the packets sent to RTB (and RTB knows how to reach RTC but it does
not know how to reach RTA).