TOEFL Listening: TPO-TOEFL阅读TPO - GY40EKN5ARXN8KQ2N$

The discussion of the history of electric power production in paragraph 6 supports which of the following? A. 1832 marked the beginning of the industrial production of electric power. B. Turbines using Benoit Fourneyron's design were eventually used to generate electric power. C. Benoit Fourneyron quickly applied Michael Faraday's discovery about electric fields to acquire a pattern for a new and more efficient waterwheel. D. Practical advances in hydro technology were more important to the development of electric power than were advances in the theoretical understanding of electricity.