When a planetary system forms, the chances that a planet capable of supporting life will be formed are high. The chan...

clairesunday5 on July 11, 2022

Actually I meant "how B is not right?" I chose B

Kellen on August 5, 2022

Hey B is wrong because it doesn't matter if one planet can block it because the passage say it unlikely, "any large planets form" so it is irrelevant if one planet will suffice because they normally wont have even one

DylanS on October 12, 2022

I also chose B, but afterwards realized that B talks about intelligent life "surviving" a comet, whereas the paragraph states that it is unlikely for life to "emerge" on a planet. This points that the real issue with comets is not that they would kill intelligent life, but that they would prevent it from emerging in general.

Emil-Kunkin on November 28, 2022

Just wanted to note that both Dylan and Kellen brought up valid reasons to dismiss d.