Solve clearly

2. The following table shows a short-run analysis for Barry's smoothies Labor Total product Marginal product Average product 80 200 330 400 450 440 420 A. Calculate the Marginal Product and the Average Product to complete all the rows in the table. B. At which amount of labor diminishing marginal returns start? C. At which amount of labor negative marginal returns appear D. Write a paragraph to explain why firms in the short-run experience increasing marginal returns at first and later they experience diminishing marginal returns. Mention also why firms may also experience negative marginal returns