Answers by visitors named: RubberDuck

For part A I think the answer is C because there's not a lot of debate and argument about the number of planets, but the passage is written in chronological order which shows the advances thought time, for part B the answer is B because it shows the thesis statement. Btw keep in mind I skimmed over the passage and am just trying to be useful, thanks :)

Guys, we don't know who Ms.Sue is. Stop assuming the worst, she could've just quit.

How do you guys know Ms. Sue is dead or alive? I mean she's a teacher on a random website, we know nothing about her.

No offense but how do you guys know? She could've just quit. I would quit too if people were being rude to me.

No, this is a free tutoring site where teachers and students can help each other, the site blocks bad words and you don't have an "account" per say. It's not really cheating.