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. You are in charge of a member server that runs Windows Server 2008. Theserver runs the Terminal Server Gateway （TS Gateway） role service. Now you receive an order from thecompany management. According to the company requirement， you have to identify whether a user namedUser1 has ever connected to his office workstation through the TS Gateway server. What action should youperform to achieve this？（）

A. In order to achieve this， you should view the Event Viewer Security log.
B. In order to achieve this， you should view the Event Viewer Application log.
C. In order to achieve this， you should view the Event Viewer Terminal Services-Gateway log.
D. In order to achieve this， you should view the events in the Monitoring folder from the TS Gateway Manager console.