Problem 2 (Type II Quantity Discounts Problem) A company will begin stocking remote control devices. Expected monthly demand is 600 units. The controllers can be purchased from either supplier A or supplier B. Their price lists are as follows: SUPPLIER A SUPPLIER B Unit Price Quantity Unit Price 1-199 $14.00 200-499 13.80 500+ 13.60 Quantity 1-149 150-349 350+ $14.10 13.90 13.70 Ordering cost is $40 and annual holding cost is 25% of unit price per unit. Which supplier should be used and what order quantity is optimal if the intent is to minimize total annual costs?