Given our present knowledge concerning colour vision,what theory provides the most accurate explanation of how we perceive colour

A)  Both the trichromatic and opponent process theories are required to explain it. 
B)  The opponent process theory is more accurate. 
C)  The trichromatic theory is more accurate. 
D)  Neither trichromatic nor opponent process theory is sufficient, so a new theory is required.

Opponent Process Theories

A group of theories, often applied to color vision and emotional responses, suggesting that elements are paired in a system where the activation of one element inhibits the activity of the opposite element.

Trichromatic Theory

A theory of color vision proposing that the human eye perceives color through the relative rates of response by three types of cones, each sensitive to different wavelengths of light.