Your company has a single Active Directory Domain Services （AD DS） domain and 1，000 Windows Vista computers.  You are planning to deploy Windows 7 and a custom application.   You have the following requirements：   The application must be available to only a specific group of users. You must be able to monitor application usage.   You need to design a deployment method for the custom application that meets the requirements.  Which deployment method should you use in your design？（）

• A、software installation in Group Policy
• B、startup scripts in Group Policy
• C、Microsoft Application Virtualization （App-V）
• D、baseline Windows 7 image that includes the custom application