21. The biggest difference between Materials Management and outbound logistics is that: a. the products being handled are physically different. b. customer service is not a concern in materials management. c. they require totally different management techniques. d. the "systems" approach does not work when applied to materials management. Question 22 (2 points) 22. Which factor below is most important in terms of purchasing raw materials and/or component parts? a. Minimizing costs b. Maximizing quality levels c. Minimizing the number of vendors d. Maximizing value Question 23 (2 points) 23. Stockless purchasing refers to: a. placing one large order but getting multiple deliveries as needed. b. the purchasing activity as conducted in a service business. c. obtaining large quantities of raw materials overseas. O O d. protection against a lack of future availability