The inventory records for Radford Company reflected the following: Beginning inventory @ May 1 First purchase @ May 7 Second purchase @ May 17 Third purchase @ May 23 Sales May 31 900 units @ $3.40 1,000 units @ $3.60 1,200 units @ $3.70 800 units @ $3.80 3,000 units @ $5.30 If the company uses the weighted-average inventory cost flow method, what is the average cost per unit (rounded) for May? Multiple Choice $3.69 $3.63 $5.30 C $3.58