Which of the following most directly lends support to the opponent-process theory of color vision?

A) We can recognize all colors even while wearing tinted glasses.
B) Rods and cones contribute to vision in different ways.
C) We see negative afterimages after staring at a bright-colored image.
D) It is possible to match any color of light by mixing three other colors.

The opponent-process theory of color vision suggests that there are three pairs of opposing color sensations: red-green, blue-yellow, and black-white. This theory states that activating one member of the pair will inhibit the other member. Seeing negative afterimages, where the colors are inverted from the original image, supports this theory because it suggests that the opposing color is being activated after the initial color is fatigued. Choices A, B, and D do not directly support the opponent-process theory.