Use the figure below to answer the following questions. Price and cost (dollars per unit) MSC MC -NWAGON D - MSB 0 1 2 3 4 5 6 7 8 9 10 Quantity of A [units) Figure 15.2.2 Refer to Figure 15.2.2. This figure shows the demand curve, the marginal private cost curve and the marginal social cost curve of good A. How many units of good A are produced in an unregulated market? Select one: O A. 0 units O B. 6 units O C. 8 units O D. 5 units