At a lump-sum cost of $63500, Cullumber Company recently purchased the following items for resale: Item No. of Items Purchased Resale Price Per Unit M 2900 $3.20 1450 10.90 ZO O Z 4900 4.90 The appropriate cost per unit of Inventory is: M N $3.20 $10.90 $4.90 O $6.86 $6,86 $6.86 $4.14 $14.10 $6.34 $3,67 $12.50 $5.62