Your company’s network has client computers that run Windows 7.   A software vendor releases version 2 of an application that your company uses.  Your company currently uses version 1.  Version 1 and version 2 are not compatible. You plan to deploy version 2 of the application.   You have the following requirements：Users must be able to run both versions of the application on their computers.   Version 2 must be available when a client computer is not connected to the network.  You need to plan a software deployment process that meets the requirements.   What should you do？（）

• A、 Deploy version 2 of the application by using Microsoft Application Virtualization （App-V）. 
• B、 Deploy version 2 of the application as a Remote Desktop Services RemoteApp.
• C、 Deploy version 2 of the application by using a Group Policy Software Installation policy.
• D、 Deploy version 2 of the application by using a Microsoft System Center Configuration Manager package.