TOEFL Listening: ETS-TOEFL听力机经 - 03RI1ZRV8WQMZL5_P$

Why does the professor mention the color of Uranus? A. To give an example of a feature that Uranus shares with Jupiter B. To give an example of a discovery made by the Voyage spacecraft mission C. To explain how a component of Uranus' atmosphere was identified D. To explain how light affects Jupiter son Uranus