I believe the answer is B
Direct and indirect characterization. direct is explaining it right in the text for example " Thomas was very smart and kind" in direct would be more of using his actions or words to describe him for example "Thomas made another 100 on the test. 'do you need any help? I would be happy to help' said Thomas"
Most likely because it appeals to the credibility of the author.
Answer:
We don't know what sentences you are referring to. You must mention them.
Explanation: