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 1. Date Blankets Purchase Units Cost 11 $15 May 31 10 10 Sale 17 Purchase 15 $16 20 Sale 23 Sale N 30 Purchase $18 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. $233 Ob. $188 c5127 Od. $121