Select the best answer for the question 9. The optimal order size which balances ordering and carrying costs is called the O A. LIFO O B. Early Order Query O C. Economic Order Quantity R. Economic Optimal Quotient Select the best answer for the question 10. Which of the following are included in a communication network subsystem? O A. Telephone lines and star and ring networks O B. Vacuum gripper and warehouse O C. Wordperfect and robots O D. Kanban and EOQ systems 11. Forecasting and inventory policy are best related through O A. multiple Kanban cards. O B. order point and safety stock levels. O C. multiple levels in a hybrid organization. O D. safety stock levels. Select the best 12. It is true of a fixed order period inventory model that it O A. orders the same quantity each week. O B. always use economic order quantities (EOQ). O c. has a safety stock built into it. O D. orders varying quantities at equal time intervals