TOEFL Listening: ETS-TOEFL听力机经 - NYI3QVB90Y4ARB4EP$

Why does the professor discuss a science book that was published in 1865? A. To give an example of what Zola's contemporaries were reading B. To describe a major influence on Zola's writing C. To comment on advances in science in the nineteenth century D. To point out that the term Naturalism was first used by scientists