You manage a member server that runs Windows Server 2008 R2.
The server runs the Remote Desktop Gateway (RD Gateway) role service.
You need to find out whether a user named User1 has ever connected to his office workstation through the RD Gateway server.
What should you do?

A.
View the events in the Monitoring folder from the RD Gateway Manager console.

B.
View the Event Viewer Security log.

C.
View the Event Viewer Application log.

D.
View the Event Viewer TerminalServices-Gateway log.

Explanation:
By using TS Gateway Manager, you can specify the types of events that you want to monitor, such as unsuccessful or successful connection attempts to internal network computers through a TS Gateway server.
When these events occur, you can monitor the corresponding events by using Windows Event Viewer. TS Gateway server events are stored in Event Viewer under Application and Services LogsMicrosoftWindowsTerminal Services-Gateway.
Source: http://technet.microsoft.com/en-us/library/cc730618(WS.10).aspx