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.