Your network has client computers that run Windows XP.  All users access a custom line-of- business application.   The line-of-business application is not compatible with Windows 7. You are planning to deploy Windows 7.   You have the following requirements：   The application must run on all client computers.   The application executable must reside on each client computer.    You need to manage application compatibility to meet the requirements.   What should you do？（）

• A、Install the application on a Remote Desktop Services server.
• B、Install a shim for the application on each client computer.
• C、Install the Windows Compatibility Evaluator on each client computer.
• D、Virtualize the application by using Microsoft Application Virtualization （App-V）.