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You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
You write the following code fragment. (Line numbers are included for reference only.)

You need to rotate the rectangle by 45 degrees by using its upper-left corner as the axis. 
Which code fragment should you insert at line 04?（）

You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. 
The application has multiple data entry windows. Each window contains controls that allow the user to type different addresses for shipping and mailing.
All addresses have the same format. 
You need to ensure that you can reuse the controls. 
What should you create?（）