According to the Trichromatic Theory of Colour Vision

According to the trichromatic theory of colour vision,

A) colour vision can be explained on the basis of three types of cones, which are maximally sensitive to red, green, or blue.
B) we are taught to recognize colours by three sources: parents, schools, and society.
C) colour signal detection depends on the presence of sufficient light to register the three primary colours.
D) colour vision is a process of opponent receptors integrating their information to build each colour pattern.