D Question 1 1 pts Assume that the extraction of water by a coal mining company imposes a cost on farmers. Assume that the supply curve for coal is given by the following: p = 240 +2Q. Further, assume that the demand curve for coal is given by the following: p = 900 - 3Q. If the marginal external cost (MEC) of coal mining is equal to Q, which of the following is true? At the competitive equilibrium a deadweight loss of 396 occurs and a Pigouvian tax of 60 will lead to an efficient outcome. At the competitive equilibrium a deadweight loss of 1452 occurs and a Pigouvian tax of 110 will lead to an efficient outcome. At the competitive equilibrium a deadweight loss of 835 occurs and a Pigouvian tax of 80 will lead to an efficient outcome, At the competitive equilibrium a deadweight loss of 792 occurs and a Pigouvian tax of 120 will lead to an efficient outcome. O None of the above