Table 10-3 Quantity (Units) Private Value (Dollars) Private Cost (Dollars) External Benefit (Dollars) 1 22 12 10 2 20 15 10 3 18 18 10 4 16 21 10 5 14 24 10 6 12 27 10 Refer to Table 10-3. The table represents a market in which a. there is a positive externality. b. there is no externality. c. The answer cannot be determined from inspection of the table. d. there is a negative externality