You Wake Up Feeling Disoriented After a Long Sleep and When

Multiple Choice

You wake up feeling disoriented after a long sleep and when you open your eyes, a scene emerges before you.You cannot tell if you are looking at a scene of toy cars driving around a miniature city or if you are on top of a building looking down at real cars driving around an actual city.This illusion occurs because of a lack of constancy.

A) shape
B) color
C) size
D) lightness