If producing a good or service creates pollution, then
A. At the unregulated competitive market equilibrium quantity marginal social benefit and marginal social cost are equal
B. The industry's supply curve includes the extra cost of pollution
C. An unregulated competitive market produces an efficient output
D. At the unregulated competitive market equilibrium quantity marginal social cost is greater than the equilibrium price
E. At the unregulated competitive market equilibrium quantity marginal social cost is less than the equilibrium price