Boxwood Company sells blankets for $37 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 31 Purchase 6 $20 10 Sale 3 17 Purchase 9 22 20 Sale S 23 Sale 3 30 Purchase 9 33 23 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. $267 Ob. $145 Oc. $311 Od. 1289