2. Just CDs, Ine., has developed a booming business in the purchase and sale of used CDs and used DVDs. Demand and marginal revenue relations for the local college student market are: P=$6$0.00005QTC=$4QP=Mr=MLMR=$6$0.0001Q Fixed costs are zero, and marginal costs are constant at \$4 per unit. a. if Just CDs enjoys an effective monopoly in the local market, Calculate the profitmaximizing a, Output (Spts) b. Price (2pts) c. Profits(3pts) B. if Internet competition makes the used CD and used DVD market perfoctly competitive, Calculate the d. Output (5pts) e. Price (2pts) f. Profits(3pts)