Which of the Following Statements Is (Are) True

Multiple Choice

Which of the following statements is (are) true?

A) As a consumer consumes more and more of a good or service, its marginal utility eventually falls.
B) Utility is a quality inherent in the good or service itself.
C) Marginal utility is the change in total utility resulting from consuming one more or one less unit of a good.
D) Both A and C are true.