You are employed as an application developer at ABC.com. You make use of Microsoft .NET
Framework 4 to develop Windows Presentation Foundation (WPF) applications.
You have received instructions to develop a new application. You are also informed that the
application should contain a custom control that is configured to have a number of text entry
sections. These text entry sections must each have its own label. Additionally, you have to
configure the use of a regular expression validator to validate these text entry sections.
Which of the following actions should you take?

A.
You should consider inheriting from the ListBox class.

B.
You should consider inheriting from the ListElement class.

C.
You should consider inheriting from the userElement class.

D.
You should consider inheriting from the UserControl class.

Explanation: