The figure presents Total Product (units of output per day) as a function of Labour (workers per day) hired. Short description: A graph plots L against TP. Long description: The horizontal axis represents L and the vertical axis represents TP. The curve representing TP passes through the following points: (1, 16), (2, 48), (3, 88), (4, 120), (5, 144), and (6, 160). FIGURE 7-2 Refer to Figure 7-2. The most efficient way to produce 160 units of output is to hire a. 6 workers. b. 3 workers. c. 4 workers. d. 5 workers. e. 2 workers