Boxwood Company sells blankets for $40 each. The following was taken from the inventory records during May. The company had no beginning inventory on May 1. Blankets Units Date Cost Purchase $15 May 03 Sale 4 10 Purchase 17 13 $16 Sale 20 4 23 Sale 2 Purchase $18 30 13 Assuming that the company uses the perpetual inventory system, determine the gross profit for the sale of May 23 using the FIFO inventory cost method. a. $48 b. $80 c. $22 d. $112