TOEFL Listening: ETS-TOEFL听力机经 - ARIL95WW94V9JEEWP$

Why does the professor mention sitting in a dorm room and hearing noises from down the hall? A. To show how random sounds interfere with speech production B. To illustrate how researchers are able to work with limited data C. To explain how infants cries are often perceived. D. To describe how a fetus hears speech through its mother's abdominal wall