25 20 MC ATC Price and costs (dollars per unit) 15 10 . . . . . .....}.." 5 MR D 4 8 12 16 20 24 Quantity (units per day) The above figure shows the demand and cost curves for a monopoly. The firm maximizes its profit by O producing 4 units and charging a price of $15. O producing 8 units and charging a price of $5. O producing 8 units and charging a price of $10. O producing 16 units and charging a price of $10. O None of the above answers are correct