If You Stare for 30 Seconds at a Red Object

Multiple Choice

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 ________ theory of color vision.

A) Helmholtz opponent-process
B) Hering trichromatic
C) Hering opponent-process
D) Helmholtz trichromatic