A commercial fisherman notices the following relationship between hours spent fishing and the quantity of fish caught: Hours 2 4 5 Quantity of fish ( 10 18 24 28 30 (in kilograms) a. What is the marginal product of each hour spent fishing? b. Use these data to graph the fisherman's production function. Explain its shape. c. The fisherman has a fixed cost of $ 10 (his fishing rod). The opportunity cost of his time is $5 per hour. Graph the fisherman's total cost curve. Explain its shape