A local restaurant offers an "all you can eat" barbeque special. You pay $9.00, and then you can eat as many servings as you desire at no additional cost. It would follow that you will stop eating when
A) your marginal utility (or value) derived from eating another serving is zero.
B) your total utility (or value) derived from all of the servings consumed just equals $9.00.
C) your marginal utility (or value) derived from another serving equals $9.00.
D) it is physically impossible for you to eat any more.

Question

Quizplus · Accepted Answer

When the marginal utility derived from eating another serving is zero, it means that consuming more does not provide any additional satisfaction or benefit, so you would stop eating.

A Local Restaurant Offers an "All You Can Eat" Barbeque