Use the following to answer questions :
Refer to the figure below.

-This image works as an illusion because
A) one of the men is significantly larger than the other.
B) the images of the two men on the retina are equal in size.
C) the men appear to lie parallel to each other, though they do not.
D) the steel tracks appear to be parallel to each other, though they are not.

Question

Use the following to answer questions :
Refer to the figure below.
 
-This image works as an illusion because
A) one of the men is significantly larger than the other. 
B) the images of the two men on the retina are equal in size. 
C) the men appear to lie parallel to each other, though they do not. 
D) the steel tracks appear to be parallel to each other, though they are not.

Quizplus · Accepted Answer

The illusion works because the images of the two men on the retina are equal in size, creating a perception that contradicts the actual size difference.

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