The Boxwood Company sells blankets for $36 each. The following was taken from the inventory records during May. The company had no beginning inventory on May Date Blankets Units Cost May 3 Purchase 7 $15 10 Sale 4 17 Purchase 16 $17 20 Sale S 23 Sale 3 30 Purchase 9 $22 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. Oa. $145 Ob. 581 Oc. 379 Od. $130