What will you do?

You are creating a Windows application using .NET Framework 4.0. All employees of the company will use that application. The local file of the application is stored on the local computers. The file is secure and cannot be accessed from remote places.
You are required to design a remote monitoring strategy to monitor the usage time of the application by each user.
What will you do? Each correct answer represents a part of the solution. Choose two.
A. Publish the events to Windows Event Log.
B. Publish the events to Microsoft Operations Manager.
C. Publish the application’s startup, shutdown, and user idle time events by using the System Management Instrumentation namespace.
D. Use Windows Management Instrumentation.
E. Add TraceSource for startup, shutdown, and user idle events.