TOEFL Listening: ETS-TOEFL听力机经 - OORG6ENUD6142KU1P$

What is one point the professor makes about the capture theory? A. It accounts for the difference in composition between Earth and the Moon. B. It lost popularity when the fission theory was proposed. C. It is based on the assumption that Earth's gravitational field has remained constant. D. It was challenged by the Apollo findings.