When a firm uses three laborers, it can produce 200 units daily. A fourth laborer allows the firm to produce 350 units daily. Which of the following statements is true regarding production? a.) The average product for the fourth laborer is 87.5 units. b.) The total product for the fourth laborer is 550 units. c.) The total product for the fourth laborer is 150 units. d.) The average product for the fourth laborer is 150 units