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.