Three students have different demand curves for puzzles. Adriana's demand curve for puzzles is given by 0., = 5 P. Bernardo's demand curve for puzzles is given by QB = 6 2P. Chel's demand curve for puzzles is given by Q: = 4 0.5P. a. Derive the market demand curve for puzzles. Be sure to show your work. (20 points) b. Graph each student's demand curve and the market demand curve. Be sure to clearlyr label each part of the graph. (Hint: Make sure the market demand curve is drawn to represent individual's exiting the market at their choke price.) (40 points) c. Identify clearly where along the market demand curve individuals leave the market for puzzles. (12 points) d. Why do individuals exit the market for puzzles as the price for puzzles rises? What role do prices play in individuals' decision to leave the market? (28 points)