B) herman von helmholtz
The trichromatic color theory<span> began in the 18th century, when </span>Thomas Young<span> proposed that color vision was a result of three different </span>photoreceptor cells<span>. </span>Hermann von Helmholtz<span> later expanded on Young's ideas using color-matching experiments which showed that people with normal vision needed three wavelengths to create the normal range of colors. Physiological evidence for trichromatic theory was later given by </span>Gunnar Svaetichin<span> (1956).</span>
Answer:
I'm pretty sure The answer is c) a background in art's history helps validate and justify a critics judgement
This is mostly talking about visual art and how some art was structured
Im about 88% sure that its tufa.
sorry if its not..
Very good he is a talented