Suppose the cost of operating a 75 room hotel for a night is $6,000 and there are 5 empty
rooms for tonight. If the marginal cost of operating one room for one night is $40, the hotel manager should rent one of the empty rooms only if a customer is willing to pay
A.more than $40, as the average benefit will exceed the marginal cost.
B.more than $40, as the marginal benefit will exceed the marginal cost.
C.more than $80, as the average benefit will exceed the marginal cost.
D.more than $80, as the marginal benefit will exceed the marginal cost.