Select All That Apply

Multiple Choice

Select all that apply.In a flat, barren desert, Ji-hun sees two statues in the distance that appear to be the same size.However, when his friend crosses in front of the statue on the right, walks up to the statue on the left, and lays a hand on it, Ji-hun realizes that the statue on the right is really much bigger and farther away.What clues did Ji-hun combine to reach this conclusion?

A) size constancy
B) optic flow
C) visual angles
D) occlusion