Which of the Following Are Reasons for Keeping Inventory

Multiple Choice

Which of the following are reasons for keeping inventory?
I. To allow for goods in transit.
II. To build up stock for seasonal demand.
III. To reduce production costs.
IV. To guard against uncertainty in supply and demand.

A) I, II and III only
B) II, III and IV only
C) II and IV only
D) all the above are valid reasons