Your company has a domain controller that runs Windows Server 2008 and the DNS role. The DNS domain is named contoso.com You need to ensure that inquries about contoso.com are sent to dnsadmin@contoso.com What should you do？（）

• A、Create a signature （SIG） record for the domain controller
• B、Modify the Name Server （NS） record for the domain controller
• C、Modify the Service Locator （SRV） record for the domain controller
• D、Modify the Start of Authority （SOA） record ont he domain controller