Suppose You Stare at an Illustration of the American Flag

Multiple Choice

Suppose you stare at an illustration of the American flag for a while and then glance at a blank white page. Why do the red stripes look green when you glance at the blank page

A) Cones responsive to green light begin firing.
B) Cones responsive to red light stop firing.
C) Opponent-process cells activated by red light become fatigued.
D) Opponent-process cells activated by green light begin adapting.