Expository writing is meant to inform a reader about a certain topic. Because of this, D is the correct answer.
Answer:
The Secret of the Blue Room
Explanation:
Maybe it could be a murder story and it happened a long time ago in this "blue room". Throughout time after that people who have stayed in that room (it can be a hotel) have gone missing. Then, the main character finds themselves trying to solve the mystery and yeaaaaaa.
Answer:
Paul Revere's friend will send a secret signal to inform him of the British army's plan.
