Answer:
The topic for a narrative about a difficult choice that would be best told in the first-person is 2.) a girl deciding whether to break up with her boyfriend Explanation:
The first person narrative gives the point of view of the person that is telling the story, the only example we have in the options of a personal point of view is option 2 the other options involve others besides the narrator, options 1 and 3 have several characters and in order to tell the full story it is necessary to use a different style from the first person and option 4 is clearly a third person story.