Boxwood Company sells blankets for $35 each. The following was taken from the inventory records during May. The company had no beginning inventory on May 1. Date Blankets Units Cost May 03 Purchase 5 $17 10 Sale 3 17 Purchase 10 $18 20 Sale 5 23 Sale 2 30 Purchase 10 $20 Assuming that the company uses the perpetual inventory system, determine the ending inventory for the month of May using the LIFO inventory cost method. a. $288 b. $144 c. $234 d. $342