How does the concept of 'function' relate to 'happiness' according to Aristotle?A. Function is the purpose of a thing, and happiness is the purpose of a human being.B. Function is the essence of a human being, and happiness is the essence of a thing.C. Function is the goal of a human being, and happiness is the goal of a thing. D. Function is the objective of a thing, and happiness is the objective of a human being.