The moon illusion disappears if you _____.
a. close one eye while looking at the moon
b. concentrate very hard on all the other items in between you and the horizon moon
c. view bend over and look at the moon upside down, between your legs
d. view the horizon moon through a filtered lens designed to reduce glare
Correct answer is option C. Explanation: The moon illusion disappears if you view bend over and look at the moon upside down, between your legs.