Bonus Question: 5 Points Total Item X is a standard item stocked in a company's inventory of parts. Each year, the firm, on a random basis, uses about 2,000 of item X, which costs $25 each. Storage costs, which include insurance and cost of capital, amount to $5 per unit of average inventory. Every time an order is placed for more of item X, it costs $10. a) Whenever item X is ordered, what should the order size be? b) What is the cost of ordering item X? c) What is the cost of storing item X