Your manufacturing plant is fortunate enough to be located in a small island country with an abundance of raw materials, reliable suppliers, and efficient transportation systems. You are trying to reduce the cost of storing, insuring, and managing your inventories. The best solution to your problem is a$.$ the Program Evaluation and Review Technique. b$.$ the economic order quantity model. c$.$ just$-$in$-$time inventory management. d$.$ material$-$requirements planning.