Answer:
The answer is "Fixed-single".
Explanation:
A FormBorderStyle property is a part of the C# language, which is used to displays the form's border style for viewing an application form. This property uses the fixed-single attribute, which will be used to determine, if the template or form can be resized by the end-user, it can be dragged or resized by no border or a title bar. A fixed, single-line border.
