单项选择题

A. On each server, remove all users from the Remote Desktop Users group.
B. On each server, run the Terminal Services Configuration console. From the RDP-TCP connection permissions properties, set the Full Control permission for the Remote Desktop Users group to deny.
C. Use a Group Policy Object (GPO) to disable the Allow users to connect remotely using Terminal Services setting.
D. Use a Group Policy Object (GPO) to configure the Sets rules for remote control of Terminal Services user sessions setting to No Remote Control.