this is the diagram

Pane Figure 1 The figure below shows the production function for firm that makes t-shirts. 105 100 90 70 40 2 3 4 5 L 3. Refer to Figure 1. The marginal product of the second worker is a. 20 t-shirts. b. 30 t-shirts. 90 t-shirts. d. 10 t-shirts