8.

Air cargo services is an industry that generates pollutants via engine exhaust. In a country without any pollution regulations, what can we say about the market equilibrium price and output of air cargo services? Select one: O A. price and quantity of air cargo services are both above the optimal level. O B. price is above the optimal level, and quantity is below the optimal level. O C. price and quantity of air cargo services are both below the optimal level. O D. price is below the optimal level, and quantity is above the optimal level