An Effective Way to Prevent an Unanticipated Shortage of a Supply

An effective way to prevent an unanticipated shortage of a supply item is to ____.

A) keep the same item in several different locations
B) request that workers finish one container before opening a new one
C) reorder the item when the last one is taken for use
D) educate the workers on how to make supplies last from one order to the next
E) reorder an item whenever someone requests it, without checking the inventory