Rods respond only to varying degrees of light and dark, not to color

The illusion based on the concept that most people live in a world with lots of buildings and corners is the _________

a) moon illusion b) Poggendorf illusion c) Ponzo illusion d) Müller-Lyer illusion

Margot daydreams about having a wide circle of friends whom she can socialize with on the weekends and whom she can connect with on a personal level. Margot currently doesn't have any friends, however, and feels isolated and, at times, depressed

Margot suffers from ________. a) narcissism b) PTSD c) loneliness d) discrimination