The correct answer is B. It provides insight into the narrator's opinions.
Step-by-step explanation:
A first-person narrator is a type of narrator in which the events in a story are described or tell by one of the characters, this can include a main character participating in the main events of a story or a secondary character who witness the main events. First person narrative is usually considered as limited as the events are described from the point of view of one of the characters and guided by his thoughts, ideas, opinions beliefs, and perceptions, using the pronoun "I" to describe what happens. Thus, this type of narration allows the reader or the audience to have access to the narrator's mind, including opinions, perceptions and others.