After a trip to Dunkin' Donuts, your friend says that the marginal benefit he derived from the last donut was less than the marginal cost of last donut. Given this information, you

After a trip to Dunkin' Donuts, your friend says that the marginal benefit he derived from the last donut was less than the marginal cost of last donut. Given this information, you 




A. know that he should have eaten more donuts.
B. know that he should have eaten fewer donuts.
C. know that he ate just the right number of donuts.
D. cannot tell for sure whether because you don't know his total benefits and total costs.




Answer: B


Microeconomics

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