I am worried even more about having a kid in school now.
master of none - I would give a A for that response. It was brief and it answered the question. I just think the assignment is too open to get picky about responses. Was there a word requirement that should have been met?

I agree the word choice of "hate" and "sucks" are bad. Otherwise, if the teacher had something in mind it could have been in the instructions.

I guess I would point out if he is turning in something for a grade he needs to pander to / be respectful to the grader.