TOEFL Listening: ETS-TOEFL听力机经 - 1W72P3458XV33MC3P$

What main benefit of adaptive optics does the professor mention? A. They block out all light sources from stars close to the parent star. B. They are able to combine images from two separate telescopes. C. They adjust for the distortion of a star's image caused by Earth's atmosphere. D. They measure the amount of wobble of a parent star.