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Consider a well-functioning market for prosthetic hips. that is characterized by the following demand and supply curves: Demand curve: P I: 100 - 20 Supply curve: P = 30 (a) what is the marginal private benet of the 5'h unit? (2 points] (b} What assumption was necessary for you to answer (a) {in addition to the assumptions necessary to have a well-functioning market)? Explain. {2 points) (c) What Is the total social benefit in equilibrium? (2 points) (d) What is the net (total) social benet in equilibrium? (2 points} (e)I Suppose that one of the lay-products from the production of prosthetic hips is a highly hazardous substance that can cause environmental damage when disposed of. How does this affect your answer in id)? Illustrate using a graph [no need for numbers). (2 points]