Your network contains a single Active Directory domain. You have 100 servers that run Windows Server 2008 R2 and 5，000 client computers that run Windows 7. You plan to deploy applications to the client computers. You need to recommend an application deployment strategy that meets the following requirements： èApplications must be deployed only to client computers that meet the minimum hardware requirements. èDeployments must be scheduled to occur outside business hours. èDetailed reports on the success or failure of the application deployments must be provided. What should you recommend？（）

A. Deploy applications by using Group Policy.
B. Implement Windows Server Update Services （WSUS）.
C. Implement Microsoft System Center Operations Manager （SCOM） 2007 R2.
D. Implement Microsoft System Center Configuration Manager （SCCM） 2007 R2.