TOEFL Listening: ETS-TOEFL听力机经 - Q7GS558IW73XE2LQP$

Why does the student mention his biology class? A. To ask about using a topic from biology for a writing assignment in his business class B. To indicate why he is confused about a concept they are discussing in his business class C. To point out that the concept of swarm behavior has more practical applications than the D. To suggest an article that the professor might want to read