What Is the Primary Reason That Companies Implement Just-In-Time Practices

What is the primary reason that companies implement just-in-time practices?

A) Frequent deliveries insure that the factory will run smoothly.
B) Large inventories are needed to insure no bottlenecks in production.
C) Inventory is expensive; just-in-time reduces the time that materials and components are in inventory.
D) to be less vulnerable to natural hazards, traffic, and labor unrest
E) allows suppliers to be located a farther distance from their manufacturing facility