TOEFL Listening: TPO-TOEFL听力TPO - 7B9420EBE3IK9J0MR$

Why does the professor mention Isaac Newton? A. To show the similarity between early ideas in art and early ideas in science. B. To explain why mixing primary colors does not produce satisfactory secondary colors. C. To provide background information for the theory of primary colors. D. To point out the first person to propose a theory of primary colors.