Consider the single period stochastic demand problem. Assume that there are two ordering opportunities. At the beginning of the selling period, you are allowed to place an order Q1 at a unit purchasing cost ci. Then, after the demand for the selling period is observed, you have an additional order opportunity to order an emergency amount to satisfy the shortfall that may occur. Let Qz be the quantity ordered after the demand is observed. Let C2 denote the unit purchasing cost for the second order opportunity. Suppose that the emergency order arrives fast enough to satisfy demand, hence avoiding lost sales. (If you choose not to exercise the second order opportunity, the demand and hence the associated profit is lost). Let s and p be the unit salvage value and selling price respectively. Let X denote the random demand in the selling season with density f(x) and cumulative distribution function F(x). a) If p > C1 > C2, what is the optimal ordering policy? Explain shortly. b) Assume that c1 C1 > C2, what is the optimal ordering policy? Explain shortly. b) Assume that c1