Which best describes a way in which Naturalism differs from Realism?

While both are literary styles that are relatively “pessimistic”, secular and unromanticized, realism focuses more on depicting life as it is for the average person, while naturalism can seem more exaggerated and often places more emphasis on the influences on human life that are (often sadly) beyond our control.

a.) it provides a clue to solve the mystery.

i think the correct answer is b. phrase