Which answer correctly describes the grey lines in this Hering illusion? (Optical Illusions Lesson)

A close-up of a fanDescription automatically generated with low confidence

Question 1 options:

The grey lines are bent.

The grey lines are straight.

The grey lines are curly.

The grey lines are a figment of my imagination.

The answer that correctly describes the grey lines in this Hering illusion is "The grey lines are bent." Option A. This is further explained below

What is the Hering illusion?

The Hering Illusion is one of several illusions in which a major component of a basic line picture is obscured.

In conclusion, The statement for the grey lines in this Hering illusion is "The grey lines are twisted.".