The correct answer is C. Including words that address logic and reason
Explanation:
The purpose of an argument is to prove as valid a specific point of view usually by including reasons, evidence, examples, based on facts and logic. In the case of the excerpt presented, the author argues against censorship by explaining the importance of reading and highlighting how books are necessary for the spirit. Additionally, in this argument, the author provides mainly evidence based on emotions such as "Books nourish the spirit" or "we become freer and freer". In this context, one way to make the excerpt more argumentative is to introduce words or statements that are based on logic and reason because by introducing this type of objective evidence the author can better prove the importance of preventing censorship, and therefore the argument will be strengthened.