The graph below illustrates the market for a mystery good or service, including its Demand or Marginal Private Benefit (MPB), Marginal Private Cost (MPC), and Marginal Social Cost (MSC). MSC S=MPC Pa h b G P2 P1 D=MPB Q Q1 Q2 Why is this type of market considered a market failure? The socially efficient quantity, Q2, is greater than the free market quantity, Q1, resulting in a deadweight loss of area h if left unregulated. The socially efficient quantity, Q2, is greater than the free market quantity, Q1, resulting in a deadweight loss of area d+g if left unregulated. O The socially efficient quantity, Q1, is less than the free market quantity, Q2, resulting in a deadweight loss of area h if left unregulated. The socially efficient quantity, Q1, is less than the free market quantity, Q2, resulting in a deadweight loss of area d+g if left unregulated. T