please help answer number 2,3 and 5

1. The introduction of quantity discounts will cause the optimum order quantity to be; A) smaller B) unchanged C) greater D) smaller or unchanged E) unchanged or greater 2. Which inventory model is most appropriate if unused or unsold items cannot be carried over to later periods? A) economic order quantity model B) economic production quantity C) Christmas tree D) quantity discount E) reorder point 3. What is the relationship between average inventory and the in-stock probability? A) The more the inventory, the lower the in-stock probability B) There is not a definitive relationship-more inventory could mean high or lower in-stock probability C) The more the inventory, the high the in-stock probability 4. A firm evaluates its EOQ quantity to be 180 cases, but it chooses an order quantity of 200 cases. Relative to the order quantity of 180 cases, the order quantity of 200 cases has: A) higher ordering cost and higher holding cost B) higher ordering cost and lower holding cost C) lower ordering cost and higher holding cost 5. If the target in-stock probability increases, then the expected time between stockouts: A) increases B) remains the same C) decreases DO could increase or decrease