All servers in your environment run Windows Server 2008 R2. All client computers ru n 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 ne ed 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 1 0240.
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.