☁️My Answer☁️:
I believe the correct answer option is C.) It was Friday afternoon, and Michael was ready for the school bell to ring, because exposition is a comprehensive description and explanation of an idea or theory, which means this answer option is the most descriptive because it says it was on a Friday unlike the other answer options because they only give detail about what happened inside the classroom and it doesn't give as much detail as much as option C.
(I do indeed apologize if this is incorrect.)
I hope you do enjoy the rest of your day! (ɔ◔◡◔)ɔ ♥
-Kirby ★ ツ ✌