boxwood company sells blankets for $34 each. the following was taken from the inventory records during may. the company had no beginning inventory on may 1. dateblanketsunitscost may 3purchase7 $26 10sale4 17purchase10 28 20sale5 23sale2 30purchase9 29 assuming that the company uses the perpetual inventory system, determine the cost of merchandise sold for the sale of may 20 using the lifo inventory cost method. a.$261 b.$140 c.$104 d.$56