A paragraph, because he is not a full essay.
Where you going essay!
Juan v Juan
I just asked him to edit my essay and he said I have semi colon problems. He must be a smart guy if he can figure that out from my writing.
Her teacher told her to go home and do an essay.
because he's too short to be called an essay.
A paragraph because he's not quite an essay (ese)
Paragraph. Because he's not even a full ese.