Click the Exhibit. A customer reports that they have recently lost connectivity to a remote site over a shared architecture. Referring to the exhibit, what is t...

Click the Exhibit. A customer reports that they have recently lost connectivity to a remote site over a shared architecture.
Referring to the exhibit, what is the problem?

A. The authentication method or key has been changed. B. The remote link is down. C. The remote router has been powered off. D. The remote site router has been configured for OSPF.