If you stare for 30 seconds at a red object and then look at a blank sheet of white paper, you will see a greenish image of the object. This phenomenon best supports the:
◦ light adaptation theory of color vision.
◦ Hering opponent-process theory of color vision.
◦ Young-Helmholtz trichromatic theory of color vision.
◦ Hering trichromatic theory of color vision.
◦ Young-Helmholtz opponent-process theory of color vision.