Figure: The Market for Round-Trip Airline Flights Price P P Q1 Q2 Q3 Quantity Reference: Ref 5-27 (Figure: The Market for Round-Trip Airline Flights) Look at the figure The Market for Round-Trip Airline Flights. The supply and demand graph represents the market for round-trip airline flights between Boston and New York. Suppose the mayor of New York decides to limit the number of flights to Q1 to reduce air pollution. What area or areas represent producer surplus after the quota is in place? a a +b +c Octe O b+d +f