Which form's purpose is to illustrate a moral or general truth about human nature?

a. fable
b. parody
c. satire
d. rhetoric

The correct answer is A. Fable.

A fable is a literary work, written in verse or prose, in which a brief story is told and its main purpose is to provide a moral. Its characters are generally animals, plants, inanimate objects or forces of nature that possess human attributes and the ability of reasoning.  

the answer to this question

the answer is academic paper

and the second should be college professor