You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. There is an Active Directory domain in your company. The company runsTerminal Services. Standard users who connect to the Terminal Server are in the TSUsers organizationalunit （OU）. Administrative users are in the TSAdmins OU. No other users connect to the Terminal Server.Now receive an order from the company management. According to the company requirement， you have tomake sure that only members of the TSAdmins OU can run the Remote Desktop Protocol files. In order tomake surte of this，what action should you perform？（）

• A、A Group Policy object （GPO） should be created. This GPO configures the Specify SHA1 thumbprints ofcertificates representing trusted .rdp publishers policy setting in the Remote Desktop Client Connection template to Enabled. The GPO should be applied to the TSAdmins OU.
• B、A Group Policy object （GPO） should be created. This GPO configures the Allow .rdp files from unknown publishers policy setting in the Remote Desktop Client Connection template to Disabled. The GPO should be applied to the TSUsers OU.
• C、A Group Policy object （GPO） should be created. This GPO configures the Allow .rdp files from valid publishers and users default .rdp settings policy setting in the Remote Desktop Client Connection template to Disabled. The GPO should be applied to the TSUsers OU.
• D、A Group Policy object （GPO） should be created. This GPO configures the Allow .rdp files from valid publishers and users default .rdp settings policy setting in the Remote Desktop Client Connection template to Enabled. The GPO should be applied to the TSAdmins OU.