(Table: Variable Costs for Lots) Look at the Table Variable

Essay

(Table: Variable Costs for Lots) Look at the table Variable Costs for Lots.During the winter, Alexa runs a snow-clearing service, and snow clearing is a perfectly competitive industry.The table provided shows her variable costs for snow clearing and number of lots cleared.Her only fixed cost is $1,000 for a snowplow.Her variable costs include fuel, her time, and hot coffee.If the price to clear a lot is $60, what is Alexa's profit or loss per unit at the optimal output?
A.$60
B.$42
C.$35
D.$18