Which of the following statements is right? If a statement is wrong, how is it wrong? (a) "In a given economy, any Pareto-efficient allocation must be superior to any Pareto-inefficient allocation." 3 marks (b) "A competitive equilibrium might not be Pareto Efficient." 3 marks (c) "A competitive-equilibrium allocation can never be a fair allocation." 13 marks (d) "Deadweight loss from a commodity tax is likely to be large if the demand for the good is inelastic." 3 marks