All servers in your environment run Windows Server 2008 R2. All client computers run Windows 7.Each client computer has at least 2 5 GB free disk space. You virtualize applications by using Microsoft Application Virtualization (App-V). The App-V client cache is set to 4096 MB. User profiles are virtualized and stored on a server. You need to increase the size of the file system cache on a client computer to at least 10 GB. What should you do?（）

• A、Use the AppVCacheSize tool to set the maximum cache size to 10240.
• B、Use the AppVCacheSize tool to set the minimum free disk space threshold to 10240.
• C、Set the HKLM/SOFTWARE/Microsoft/SoftGrid/4.5/Client/AppFS/State registry key to 10240.
• D、Set the HKLM/SOFTWARE/Microsoft/SoftGrid/4.5/Client/AppFS/FileSize registry key to 10240.