Your company has an Active Directory Domain Services (AD DS) domain. You inst all the Remote Desktop Session Host (RD Session Host) role service on a server that runs Windows Server 2008 R2. All client computers run Windows 7. You need to ensure that the current Libraries from users¯ co mput ers ar e avail abl e when t hey l og on t o t he R D Session Host server. What should you do?（）

A. Redirect each user ¯s Docu ment s f ol der t o a net work shar e
B. Redirect each user ¯s Li nks f ol der t o t he RD Sessi on Host server
C. Use a startup script to copy .library - ms files from the client computers to the RD S ession Host server.
D. Use Group Policy Preferences to copy .library - ms files from the client computers to the RD Session Host server.