The Boxwood Company sells blankets for $39 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 3	Purchase	9	$16
10	Sale	5
17	Purchase	13	$18
20	Sale	5
23	Sale	3
30	Purchase	11	$23

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.

a.$170

b.$82

c.$154

d.$88