As the large butterfly flew toward Anton, he could tell it was getting closer because he could feel his eyes turning inward toward his nose as he watched it. In this instance, Anton was able to judge how far away the butterfly was using the depth cue of

A) convergence.
B) binocular disparity.
C) accommodation.
D) relative size.

Convergence

The process or point at which several things come together to form a new whole, often used in the context of technology, media, or evolutionary biology.

Binocular Disparity

The difference in image location of an object seen by the left and right eyes, resulting from the eyes’ horizontal separation and providing the basis for depth perception.