A disadvantage of the trichromatic theory of color vision is that It cannot adequately explain afterimages. Option C
This is further explained below.
Generally, According to this theory, the retina has three unique color receptors: red, blue, and green.
These three color receptors, when combined with one another, have the potential to produce the perception of any hue.
In conclusion, The fact that the trichromatic theory of color vision is unable to effectively explain afterimages is one of the theory's many shortcomings. Alternative B
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