Which is the primary principle behind the technique of linear perspective? a. objects that are far away appear smaller than they really are. b. the land and the sky always appear to meet at the horizon. c. the artist's eye level is the viewpoint from which everybody else views the picture.

A. Objects that are far away appear smaller than they really are

Explanation:

From the Encyclopedia Britannica

he three components essential to the linear perspective system are orthogonals (parallel lines), the horizon line, and a vanishing point. So as to appear farther from the viewer, objects in the compositions are rendered increasingly smaller as they near the vanishing point.