The phenomenon of color constancy best demonstrates that

A) an object's perceived color is influenced by its surrounding objects.
B) the brain processes information about color and shape simultaneously.
C) eye movements help to maintain the perception of color.
D) color vision depends on pairs of opposing retinal processes.

Color constancy refers to the ability of the brain to perceive an object as having a consistent color, even when the lighting conditions change. This demonstrates that our perception of color is not purely determined by the wavelengths of light that enter our eyes, but is also influenced by the context in which we view objects. For example, a red apple will still appear red whether it is viewed in bright daylight or in a dimly lit room. This is because our brain takes into account the colors of the surrounding objects and adjusts our perception accordingly.