You are an enterprise administrator for Cer-tech .com. The corporate network of the company consists ofan Active Directory domain. All the servers on the network run Windows Server 2008. The network runsTerminal services to enable remote users to run commonly required applications from their terminal. A remote user logged on to the Terminal Server， required some help on the application he wanted to run.However，when you connect to the Terminal Server session，you cannot operate any applications. Which of the following options would you choose to ensure that you can assist any user on the Terminal Server？（）
- AFrom the Terminal Server， run the Chguserver /execute command and then reconnect to the session.
- BIn the RDP-Tcp Properties on the Terminal Server， enable the Use remote control option with default user settings.
- CIn the RDP-Tcp Properties on the Terminal Server， enable the Use remote control with the following settings option and then configure the Level of control policy setting to Interact with the session. Ask the user to log off and log back on.
- DFrom the Terminal Server， run the Tscon /v command and then reconnect to the session.