Which sentence from the section "How Lawson Got Into Games" BEST develops a central idea of the article?

Read the excerpt from "declaration of conscience" by margaret chase smith. the exercise of these rights should not cost one single american citizen his reputation or his right to a livelihood nor should he be in danger of losing his reputation or livelihood merely because he happens to know someone who holds unpopular beliefs. who of us doesn't? otherwise none of us could call our souls our own. otherwise thought control would have set in. this excerpt contains an example of

When greg came home for lunch, he realized that his air conditioner was broken. fragment, run on or complete sentence?

I’ve given a lot of thought to what one of them should be, and the answer seems clear.