Jed's Meds has ten different items in its finished goods inventory. The average number of units held in inventory and the average unit cost are listed for each item. The firm uses an ABC system of inventory control. Item Average Number of Units in Inventory 3,000 500 4,000 50 10,000 340 1,500 460 2,500 390 Average Cost Per Unit $1.50 10.00 12.00 40.00 5.00 15.00 3.00 30.00 25.00 4.10 Which items should be considered to be in the A category of an ABC system of inventory