问题：

[单选]

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