Your company has an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. You provide access to some applications through a virtual desktop infrastructure (VDI) environment. All virtual desktop computers are located in an organizational unit (OU) named VirtualDesktops . All other client computer objects are located in an OU named Desktops. Many users experience long logon times when logging into virtual desktop computers due to large roaming profiles. You need to reduce the user logon times for virtual desktop computers. What should you do?（）

• A、On each virtual desktop computer, set a disk quota on the system drive.
• B、On each client computer, set the temporary folders option to not use session-specific temporary folders.
• C、Create a Group Policy object (GPO) that enables folder redirection for all users. Enable loopback processing, and link the GPO to the VirtualDesktops OU.
• D、Create a Group Policy object (GPO) that enables folder redirection for all users. Enable slow link detection, and link the GPO to the VirtualDesktops OU.