Which of the Following Is True About Marginal Benefit

Multiple Choice

Which of the following is true about marginal benefit?

A) A consumer's marginal benefit is equal to the height of her demand curve.
B) Consumers will continue to purchase up until the point where marginal benefit equals price.
C) Marginal benefit declines as consumption increases because of the law of diminishing marginal utility.
D) All of the above are true.