The figure below depicts a production function for a firm that produces cookies. Use the figure to answer questions 52 and 53 Quantity of ouput (# of cookies Total product curve per hour) Quantity of Input (# of workers) 52. As the number of workers increases, a. total output increases, but at a decreasing rate. b. marginal product increases, but at a decreasing rate. C. d. marginal product increases at an increasing rate. total output decreases