3. Consider a supply chain consisting of a supplier who sells a product to a retailer, who then sells to end customers, whose demand occurs in a single period and is uncertain. Which of the following is true? Group of answer choices The retailer typically does not order enough relative to the optimal value for the supply chain because of double marginalization. Contracts are usually not needed to ensure that the retailer orders the quantity that maximizes expected supply chain profit. The retailer typically orders too much relative to the optimal value for the supply chain because of double marginalization. Double marginalization means that both parties wish to coordinate to maximize expected supply chain profit