2. (Use Exhibit A: Total Product and Marginal Product) The marginal product of the 4th worker is units: A) 2.0 B) 2.25 C) 9.0 D) 10.0. 3. (Use Exhibit A: Total Product and Marginal Product) Diminishing marginal returns begin with the worker. A) second B) third C) fourth D) fifth 4. (Use Exhibit A: Total Product and Marginal Product) The slope of the total product curve between the 7th and 8th worker is: A) 10.5. B) 1.6. C) 0. D) -0.5.Exhibit A: Total Product and Marginal Product (for questions 2-4) Labor per Day Total Products (units per period) 0.0 1.0 3.0 7.0 9.0 10.0 10.7 11.0 10.5