A grocery store sells a bag of potatoes at a fixed price of $2.30. Which of the following is a term used by economists to describe the money received...

A grocery store sells a bag of potatoes at a fixed price of $2.30. Which of the following is a term used by economists to describe the money received from the sale of an additional bag of potatoes?

Select one:

A. marginal revenue

B. gross earnings

C. net benefit

D. pure profit

E. marginal costs