You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You add a custom command as a resource. The key of the command is saveCommand. You write the…

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You add a custom command as a resource. The key of the command is saveCommand. You write the following code fragment. (Line numbers are included for reference only.) 01 <Canvas> 03 <Button> 05 </Button> 06 </Canvas> You need to ensure that saveCommand is executed when the user clicks the Button control. What should you do?