Answer:
a. rent the room because the marginal benefit exceeds the marginal cost
Step-by-step explanation:
Suppose that the cost of operating a 100-room hotel for a night is $10,000, whether or not there are any guests are the hotel. Suppose that there are 5 empty rooms for tonight. If the marginal cost of operating one room for one night is $30 and the customer is willing to pay $60 for the night, the hotel manager should rent the room because the marginal benefit exceeds the marginal cost. Ofcourse hotel manager would always seek the benefit and in that case marginal benefit is more than the marginal cost