TOEFL Listening: TPO-TOEFL阅读TPO - T3FRBDQ9DO5T427QN$

According to paragraph 6, what is a possible explanation for the lack of light gases and ices on terrestrial planets? A. The location of terrestrial planets caused them to lose some of the materials they once contained. B. Terrestrial planets were formed much later than Jovian planets. C. The composition of terrestrial planets was different from that of Jupiter. D. Terrestrial planets were formed out of different material than the Sun was.