You are the network administrator for your company. You need to provide Internet name resolution services for the company. You set up a Windows Server 2003 computer running the DNS Server service to provide this network service. During testing， you notice the following intermittent problems： Name resolution queries sometimes take longer than one minute to resolve. Some valid name resolution queries receive the following error message in the Nslookup command-line tool： "Non-existent domain." You suspect that there is a problem with name resolution. You need to review the individual queries that the server handles. You want to configure monitoring on the DNS server to troubleshoot the problem. What should you do？ （）

A. In the DNS server properties， on the Debug Logging tab， select the Log packets for debugging option.
B. In the DNS server properties， on the Event Logging tab， select the Errors and warnings option.
C. In System Monitor， monitor the Recursive Query Failure counter in the DNS object.
D. In the DNS server properties， on the Monitoring tab， select the monitoring options.