resubmit photo of actual table

20. Refer to the table below. Number of Marginal Product Value of Marginal Marginal Workers Output of Labour Product of Labour Wage Profit 0 0 100 $1000 $500 $500 80 $800 $500 60 $500 $100 280 $400 $500 20 $500 What is the marginal product of the fifth worker? a. 20 b. 40 c. 60 d. 100