The answer is A) description because the teacher is describing the exact consequence for the exact behaviour. We can see that she has little time for nonsense and for misbehaviour and that she is strict and doles out punishments. While we can see this through actual dialogue it is not dialogue that characterizes the teacher. Pacing is used to see how fast or slow the story progresses and reflection is looking back on a story.
It might be C, since D isnt related to the topic, B is just one line from it, A is also not really related to the short story. Im so so sorry if its wrong!
