All client computers in your environment run Windows 7. You virtualize applications by using Microsoft Application Virtualization (App-V). You need to reset the FileSystem cache on a client computer. What should you do?（）
- AUse the AppVCacheSize tool to set the maximum cache size to 0.
- BUse the AppVCacheSize tool to set the minimum free disk space threshold to 0.
- CSet the HKLM\SOFTWARE\Microsoft\SoftGrid\4.5\Client\AppFS\State registry key to 0.
- DSet the HKLM\SOFTWARE\Microsoft\SoftGrid\4.5\Client\AppFS\FileSize registry key to 0.