The answer is B: ad hominem.
A logical fallacy is a failed form of argument that reaches a conclusion by means of invalid proofs that are not justified. Ad hominem (which could be translated as “against the man”) is one such logical fallacy and it involves an argument based on a direct attack of a person´s character or circumstances when they are not related to the content of the argument itself.
Tone is dependent on the attitude of the author or viewpoint character toward the events of the story
They way you would wanna be treated
The narrator is nervous about choosing between Dauntless and Abnegation.