he following are inventory purchase and sales data for a company: Purchased on January 1: 500 units, $8 cost per unit Purchased on January 16: 100 units, $9 cost per unit Sold on January 31: 200 units, $10 selling price per unit There was no inventory before the purchase made on January 1. Assume the company uses the LIFO method for inventory valuation. What is the reported cost of ending inventory at the end of January?

$3200, $3400, $3500, $4000