The rectangular boundary around a specific area on the display is called A. a window B. a conic section C. a view point D. a view plane E. None of the above

The correct answer is: D. a view plane.

A view plane is a rectangular boundary around a specific area on the display. It is used to define the portion of the scene that is visible to the user. The view plane can be moved, rotated, and scaled to change the perspective of the scene.

A window is a rectangular area on the screen that contains a view of the scene. The window can be moved, resized, and closed.

A conic section is a curve that is formed by the intersection of a plane and a cone. The three types of conic sections are the circle, the ellipse, and the parabola.

A viewpoint is a point in space from which the scene is viewed. The viewpoint can be moved, rotated, and scaled to change the perspective of the scene.

E is not the correct answer because it is not a term that is used in computer graphics.