Which of the following is true in regard to the single-period inventory system? A. the order quantity depends on the length of the period B. the order quantity depends on the distribution of demand C. the order quantity depends on the desired service level D. the order quantity depends on both the lead time and the demand standard deviation E. all of the above QUESTION 25 Which of the following is true in regard to the production order quantity system? A. the production rate (p) is never smaller than the demand rate (d) B. the maximum inventory level corresponds to the economic production quantity C. the reorder point is calculated in the same way as in the economic order quantity system D. all of the above E. none of the above