【单选题】A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the outp...
A.
The OSPF area is not configured properly.
B.
The priority on R1 should be set higher.
C.
The cost on R1 should be set higher.
D.
The hello and dead timers are not configured properly.
E.
A backup designated router needs to be added to the network.