9 a company reports its 2010 cost of goods sold at $15.0 million. its ending inventory for 2010 is $1.6 million and for 2009, ending inventory was $1.2 million. how much inventory did the company purchase during 2009?
 a. $14.6 million
 b. $15.0 million
 c. $15.4 million
 d. $15.8 million