The correct answer for this question is this one:
"In a persuasive essay, the writer tries to convince the reader to agree with the point of view presented, while in an expository essay, the writer narrates a story using a plot, characters, and a setting."<span>
</span>Hope this helps answer your question and have a nice day ahead.
"Students"
I believe "Eigth-grade" is an adjective of sorts or a category, but it might also be part of the subject.