Your network contains an Active Directory domain named contoso.com. You run nslookup.exe as shown in the following Command Prompt window. You need to ensure that you can use Nslookup to list all of the service location （SRV） resource records for contoso.com. What should you modify（）
- Athe root hints of the DNS server
- Bthe security settings of the zone
- Cthe Windows Firewall settings on the DNS server
- Dthe zone transfer settings of the zone