Refer to the exhibit.
After configuring OSPF in R1, some external destinations in the network became unreachable. Which action resolves the issue?
A. Clear the OSPF process on R1 to flush stale LSAs sent by other routers.
B. Change the R1 router ID from 10.255.255.1 to a unique value and clear the process.
C. Increase the SPF delay interval on R1 to synchronize routes.
D. Disconnect the router with the OSPF router ID 0.0.0.0 from the network.
