34. XYZ Company stocks and sells a particular brand of radios. t costs the firm $500 each time it places an order with the manufacture for the radios. The cost of carrying one radio in inventory for a year is $100. The store manager estimates that the total annual demand for the computers will be 1000 units, Based on this information: (PLEASE DO NOT ROUND YOUR ANSWERS y to two decimals). a) The optimal order quantity per order b) The minimum total annual inventory costs c) The optimal number of orders per year d) The optimal time between orders (in working days)