An inventory management system should answer the questions A. what and why B. when and how much C. who and why D. where and when E. None of the above

The correct answer is: B. when and how much

An inventory management system should answer the questions of when and how much inventory to order. This is because inventory management is the process of ordering, storing, and using goods in order to meet customer demand.

It is important to have the right amount of inventory on hand to avoid stockouts, which can lead to lost sales, and to avoid overstocking, which can lead to carrying costs.

The other options are not as relevant to inventory management. Option A, what and why, is too broad. Inventory management is not just about what goods to order, but also about when and how much to order them. Option C, who and why, is also too broad. Inventory management is not just about who orders the goods, but also about when and how much they are ordered. Option D, where and when, is not relevant to inventory management at all.

In conclusion, the correct answer is: B. when and how much