Inventory purchase and sales data for Electric Sun Company are as follows. Note: There was no inventory before the purchase made on January 1 Purchased on January 2 - 500 units, $11 cost per unit Purchased on January 17 - 500 units, $10 cost per unit Purchased on January 26 - 600 units, $9 cost per unit Sold on January 31 - 500 units, $15 selling price per unit Electric Sun uses AVERAGE COST. Compute ENDING INVENTORY for January O $10,931 O $4,400 O $10,500 O $11,500 O $5,500