The correct answer is C) this discovery allowed the artists to better understand complementary colors.
Michel Chevreul's discovery of the law of simultaneous contrast was beneficial to impressionist artists in that this discovery allowed the artists to better understand complementary colors.
Michel Chevreul's law of simultaneous contrast shows the way one color affects others. that complementary colors can give optical effects that influence their complements by enhancing them or mute them. This means that an individual perceives how one color changes the tone and hue of another when they are next to the other. The colors never change. What happens is that we perceive a change.
