You must create a control that meets the following requirements:
allows you to extend the behavior of a combo box

allows the arrow image that is located at the right edge of a standard control to be replaced with a new

image
has a property that sets and returns the image

maintains all of the properties of a standard combo box control

has a visual interface of the control that is defined by using XAML

defines the properties for the control in code

You need to create the control.
Which object should you use?