Answer: I would say option D because it seems the most logical and you shouldn't be avoiding your schoolwork, getting less sleep, or eating unhealthy food because those would make you feel bad and have it worse than it is already and exercising can make feel a lot better and also look better too.
Explanation:
I would say A as the answer.
Sometimes nightmares happen because of what happened on the day before you went to sleep, you might’ve been stressed, you watched a horror movie, or you might have been really scared of something, nightmares also happen because you thought about a lot of creepy things or things that would frighten you before you fell asleep.
