The answer is: A. to point out details the character would not notice.
The first-person point of view is a literary device that allows readers to get to know that character's thoughts, feelings and motives. Because the narrator refers to himself with words like <em>I, me, my </em>and <em>mine</em>, the story is seen through his or her eyes. As a consequence, it is not impartial and it may suggest features which are unknown or unnoticeable to the narrator. For example, they might not realize they have a psychological condition.
Unintentional notice or do something
