They employ figurative language
<span>The car stops at a distance away from the starting point on its return journey, because the portion shows a constant function away from the starting point.</span>
In "Night", by Elie Wiesel, it is so risky for Eliezer to be in the infirmary because <em>C) in his weakened state, he might be selected for death</em>. Eliezer's foot is swelling and he is sent to the infirmary. There, he is attended by a Jewish doctor who wants to operate on him to save his leg from being amputated. The man who lies next to him, tells him to leave as soon as possible, because if new patients show up they will be displaced, and sick Jews are useless.
C because it is like writing something and then writing it better and improving it. You have rewritten what you originally wrote but better! :)