Juniors and Seniors are anticipating this event every year. It is one way to connect with the students. Letting them experience it once a year could help them realize that school is not just a boring place of hard work to learn but also a place that they could have fun and be happy. A prom is an event that will be memorable for the rest of their lives. Using ethos logos or pathos.
B for sure. style is different for each author and influences potentially anything in the text. Think about shakespeare, he would obviously write differently to someone writing about teenage vampire romance.