You are developing a Windows Presentation Foundation (WPF) application for a travel reservation system You need to ensure that users can select a range of travel dates. What should you do ?（）

• A、Add single DatePicker control to the design surface
• B、Add single Calendar control to the design surface
• C、Add single MediaElement control to the design surface to display a calendar
• D、Add the appropriate Windows Forms references to the project references. Add a single Windows Forms DateTimePicker control to the design surface