The Boxwood Company sells blankets for $ 39.00 each. The following was taken from the inventory records during May. The company had no beginning inventory on May 1. Date Product Z Units Cost May 01 Purchase 7 $15.00 May 10 Sale 4 May 17 Purchase 10 $16.00 May 20 Sale 5 May 23 Sale 3 May 30 Purchase 10 $21.00 Assuming that the company uses the perpetual inventory system, determine the cost of goods sold for the sale of May 20 using the FIFO inventory cost method. Select the correct answer. $140.00 $77.00 $78.00 $125.00 I chose B, $77 but want to make sure I didn't make a mistake