Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). All client computers run Windows XP Professional Service Pack 3 (SP3). Three client computers are public kiosks. All kiosks are configured to automatically log on as a domain user named KioskUser. KioskUser has a roaming profile. Users frequently change the desktop backgrounds on the kiosks. You need to prevent changes to the desktop backgrounds from persisting when the kiosks restart. What should you do?（）

• A、In the roaming user profile, rename the ntuser.dat file to ntuser.man.
• B、In the roaming user profile, remove all permissions on the Desktop folder and assign KioskUser the Read permission for the Desktop folder.
• C、On each kiosk, rename the ntuser.ini file to ntuser.man.
• D、On each kiosk, remove all permissions on the Documents and Settings folder and assign KioskUser the Read permission for the Documents and Settings folder.