Use the graph to answer the free-response question. Show any calculations and be sure to lable your response.Assume that the firm above operates in a perfectly competitive market.a. What will this firm's total revenue be if the market price is $4? b. Assume the market is in short-run equilibrium and this firm is earning normalprofits. What must be the market price?c. If the short-run market price is $6, will the firm produce or shut down?d. How would the price from part (c) move to the long-run equilibrium price level? Explain.e. If the government instituted a lump-sum tax, which of the curves above would move, if any?