Refer to the exhibit. What can be concluded from the output of the debug command?
A. The output represents normal OSPF operation.
B. The interfaces of two OSPF routers connected to the Border router are in the same subnet.
C. The OSPF router connected to interface Serial0/1 has NOT formed a neighbor relationship with the Border router.
D. A router is connected to interface Serial0/3 of the Border router. The OSPF router ID of the connected router is the IP address of the connected interface.
