Julie plans to start a pet- sitting service. She surveyed her neighborhood to determine the demand for this service. Willingness to Assume that each person surveyed demands only one hour of pet sitting services per period. The table to the right Potential Pay (dollars shows a portion of her survey results. Customer per hour $8 Suppose Julie's marginal cost of providing this service is constant at $7 and she decides to charge each customer Arun according to his or her willingness to pay. What is Julie's total revenue and how many hours of service will Bernice 9 be purchased? Cara Dawn 12 O A. 4 hours and her total revenue = $39 O B. 1 hour and her total revenue = $7 O C. 4 hours and her total revenue = $28 O D. 5 hours and her total revenue = $35