Choice "B" is correct. The just-in-time system focuses on expediting the production process by having materials available as needed without having to store them prior to usage. Thus, the nonvalue adding operation of storing materials is eliminated.
Choice "d" is incorrect. A just-in-time system is designed to facilitate the flow of materials whether the materials come from one or more suppliers. Competitive bidding is not a major benefit of the just-in-time system.
Choice "a" is incorrect. Maximizing the delivery quantity of materials may increase the need to store the materials prior to using them. The just-in-time system focuses on minimizing storage time and storage costs. Lessening paperwork is not a focus of the just-in-time system.
Choice "c" is incorrect. With a just-in-time system, deliveries are made as materials are needed. A decrease in deliveries may increase the delivery quantity, thus increasing the need to store the materials prior to using them. The just-in-time system focuses on minimizing storage time and storage costs.