(Figure: Total Expenditures) as the Price of the Product Rises

(Figure: Total Expenditures) As the price of the product rises from $0 to $40, what happens to total expenditures?

A) Total expenditures increase, reaching a maximum at a price of $40.
B) Total expenditures remain unchanged.
C) Total expenditures decrease, reaching a minimum at a price of $40.
D) Total expenditures first increase and then decrease, as price approaches the midpoint of the demand curve.