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Q4 Bell Computers purchases integrated chips at $350 per chip. The ordering cost is $120 per order, and sales are 400 per month. The company's supplier, Rich Blue Chip Manufacturing, Inc., decides to offer price concessions in order to attract larger orders. The price structure is shown below: Rich Blue Chips Price Structure Quantity purchased Price/unit 1-99 units $350 100-199 units $325 200 or more units $300 a) What is the optimal order quantity and the minimum annual cost for Bell Computers to order, purchase, and hold these integrated ships if carrying costs are 10% of purchasing price per unit on an annual basis? b) What is the optimal order quantity and the optimal annual total cost if the holding cost is fixed at $35 per unit per year