According to the Trichromatic Theory (Young-Helmholtz Theory) of Color Vision

Multiple Choice

According to the trichromatic theory (Young-Helmholtz theory) of color vision, how do we perceive the difference between one color and another?

A) by the velocity of action potentials produced by any given cone
B) by the total amount of activity by cones in a particular area of the retina
C) by the relative amount of excitation of three types of cones
D) by the ratio between the activity of the cones and the activity of the rods