Rocky mountain tire center sells 12,000 go cart tires per year. The ordering cost for each order is $40, and the holding cost is 40% of the purchase price of the tires per year. The purchase price is $25 per tire if fewer than 200 tires are orderd, $18 per tire if 200 or more are ordered, but fewer than 5,000 tires are ordered, and $14 per tire if 5,000 or more tires are ordered.
A) rocky mountains optimal order quantity is ____ units?
B) what is the total cost of this policy?