You are the network administrator for The network consists of a single Active Directory domain All network servers run Windows Server 2003. TestKing operates offices in London, Paris, and Amsterdam. Each office is configured as a separate Active Directory site. Each office has a file server for local users. ChiFile is the file server in London. It hosts a shared folder. Users report that they can no longer connect to the shared folder. A help desk technician who is a member of the Power Users group reports that he cannot connect to ChiFile. However, you are able to make a successful connection with ChiFile by using Terminal Services. How should you solve this problem?（）

Add Windows Server 2003 licenses to the Site License server for London.
B. Change the licensing mode on ChiFile from Per Device or User to Per Server.
Change the licensing mode on ChiFile from Per Server to Per Device or User.
D. Install a Terminal Services Enterprise license server on the London domain controller