(10 points) A company will begin stocking remote control devices. Expected monthly demand is 800 units. The controllers can be purchased from either supplier A or supplier B. (Note that you are only allowed to purchase from one supplier.) Ordering cost is $40 and annual holding cost is 25 percent of unit price per unit. Which supplier should be used and what is the optimal order quantity if the intent is to minimize total annual costs? (round the optimal order quantity to the nearest integer) Their price lists are as follows: Supplier A Quantity Unit Price 1-199 $14.00 200-499 $13.80 500+ $13.60 Supplier B Quantity Unit Price 1-149 $14.10 150-349 $13.90 350+ $13.70