70-518 practice - PrepKeys

Q1 Single choice

You are designing a new feature for an existing Windows Forms application by using Microsoft .NET Framework 4.

The application contains multiple forms that are loaded into a parent Multiple Document Interface (MDI) form.

Your company policy does not allow the use of third-party controls.

You need to ensure that the new feature meets the following requirements:

It provides a three-dimensional scale model.
It allows users to change the colors of the model and communicates the color selections back to the application.
It allows the model to scale, based on the user's client computer display resolution.
It is a child form in the MDI application.

What should you do?

A
- Design the new feature in the existing Windows Forms application as a Windows form.
- Add the form as a child form to the MDI window.
B
- Design the new feature in a new application by using Windows Presentation Foundation (WPF).
- Invoke the new WPF application from the existing Windows Forms application.
C
- Design the new feature in a new Windows Presentation Foundation (WPF) application.
- Host the existing application inside the new WPF application by using the WindowsFormsHost class.
D
- Design the new feature by using a Windows Presentation Foundation (WPF) user control.
- Use the ElementHost class to host the WPF user control in the existing Windows Forms application.