Your network contains a single Active Directory domain named contoso.com.     An administrator accidentally deletes the _msdsc.contoso.com zone.   You recreate the _msdsc.contoso.com zone.     You need to ensure that the _msdsc.contoso.com zone contains all of the required DNS records.     What should you do on each domain controller（）

• A、Restart the Netlogon service.
• B、Restart the DNS Server service.
• C、Run dcdiag.exe /fix.
• D、Run ipconfig.exe /registerdns.