Which of the following statements about complementary colors is true? a. they form monochromatic color schemes. b. they're very close to each other in hue. c. they're rarely used in floral designs. d. they're opposites that create interesting color contrasts.

D). They're opposites that create interesting color contrasts.

Explanation:

Complementary colors are described as the pair of the colors which counterbalance one another if combined or mixed together and assists in creating fascinating color contrasts when they are placed beside each other. As the name suggests, the colors presented in these pairs are complementary to each other and helps in making good decisions about the color. Therefore, 'they are the opposite colors that create interesting colors contrasts' as one promotes another and make it look dazzling. Hence, option D is the correct answer.