【单选题】You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You plan to use a PresentationTraceSources object when the applicati...
A.
Enable WPF tracing in the registry.Restart the application.
B.
Enable tracing by modifying local Group Policy.Restart the application.
C.
Open the XML configuration file for your application on the user's computer.Set tracing to a verbose level.Restart the application.
D.
Open the XML configuration file for your application on the user's computer.Add a trace listener.Restart the application.