Click the Exhibit button. In the exhibit, what is the purpose of this OSPF configuration?（）

• A、The router sends the file debugOSPF (containing hellos sent and LSA updates) to the syslog server.
• B、The router traces both OSPF hellos sent and LSA updates, and stores the results in the debugOSPFfile.
• C、The router traces both OSPF hellos sent and LSA updates, and sends the results to the syslog process with the debugOSPF facility.
• D、The router traces all OSPF operations, stores the results in the debugOSPF file, and marks both hellos sent and LSAupdates in the file with a special flag.