Your company has an Active Directory Domain Services （AD DS） forest with a single domain.  A server has the Windows Deployment Services （WDS） role installed. You create a Windows 7 image.  You plan to use the Lite Touch Installation deployment method to deploy the Windows 7 image.    You need to design a deployment strategy that will install an image on unknown client computers only if administrative approval is granted.   What should you do？（）

• A、Create a multicast transmission for the Windows 7 image.
• B、Create a unicast transmission for the Windows 7 image.
• C、Use DHCP rogue detection on the WDS server.
• D、Use an Auto-Add policy on the WDS server.