Answer: The correct option is c. red, green and blue.
Red, green and blue are primary colors. The theory of trichromatic theory is derived from the color mixing and the color matching explanations. According to the experiment in this theory, the individual person having normal vision of color requires three wavelengths of the primary colors to match with any other color in the visible spectrum. This led to finding of color vision which is based on the activities of three different receptors each having a different sensitivity of the peak. The three receptors are each sensitive towards colors red, blue and green respectively.
