To What Extent Are Colour Afterimages Adequately Explained by Trichromatic

Multiple Choice

To what extent are colour afterimages adequately explained by trichromatic theory on the one hand,and opponent-process theory on the other?

A) Trichromatic theory offers a more satisfactory account of colour afterimages than does opponent-process theory.
B) Opponent-process theory offers a more satisfactory account of colour afterimages than does trichromatic theory.
C) Both trichromatic theory and opponent-process theory offer satisfactory accounts of colour afterimages.
D) Neither trichromatic theory nor opponent-process theory offers a satisfactory account of colour afterimages.