An essay is
a. a subgenre of fiction in which authors tend to employ experimental techniques.
b. a poetic and often dramatic type of writing that can sometimes lack coherence due to its freedom from logical structure.
c. a type of nonfiction writing in which the author makes deliberate style, structure, and diction choices to support a thesis.
d. a nonstylized and completely factual form of nonfiction in which the author's voice and style are completely absent.