Your network consists of a single Active Directory domain. You have a terminal server that runs Windows Server 2003 Service Pack 2 (SP2). You need to prevent users from establishing multiple Remote Desktop connections to the server. What should you do? （）

• A、Install and configure Terminal Server Licensing.
• B、From Terminal Services Manager, modify the user sessions.
• C、From Terminal Services Configuration, modify the server settings.
• D、From Active Directory Users and Computers, modify the Sessions settings for each user account.