The Production Function and Marginal Product Total output Marginal Total Number (number of meals product of Output of workers served per hour) labor 70 50 30 10 10 N 15 15 0 1 2 3 4 5 6 7 8 9 10 Number of W 30 workers (a) 12 42 Marginal 10 Product 52 of Labor 15 60 10 65 5 0 67 -5 63 -10 1 2 3 4 5 6 7 8 9 10 Number of 10 55 workers (b) In the example presented in this graph, after what number of workers does diminishing marginal product occur? Choose one: O A. 2 workers O B. 3 workers O C. 6 workers O D. 9 workers