The inventory records for Tammy Company reflected the following Beginning inventory on May 1 1,200 units @ $4.00 First purchase on May 7 1,300 units @ $4.20 Second purchase on May 17 1,500 units 4.30 Third purchase on May 23 1,100 units @ $4,40 Sale on May 31 4,000 units @ $5.90 What is the amount of ending inventory assuming the FIFO cost flow method is used? A. 5270 B. 4800 C. 4840 D. 4860