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Suppose the supply function of a certain item is given by S(q) = e - 3 and the demand function is given by D(q) = 200 -e . Complete parts (a) to (d) below. . . . (a) Graph the supply and demand curves. Choose the correct graph below. O B. &C. O D. AY 250- 250- 250- 250- 125- 125 125- 0 1 O in (b) Find the point at which supply and demand are in equilibrium. (Type an ordered pair. Do not include the $ symbol in your answer. Do not round until the final answer. Then round to two decimal places as needed.)