Formula to calculate cost of goods sold:
Cost of goods sold = Opening stock + Cost of goods manufactured - Closing stock
Therefore, cost of goods sold for the year 2013 for Dollan Company = Finished goods stock as on Dec 31,2012 + Cost of goods manufactured for 2013 - Finished goods stock as on Dec 31, 2013:
$150,000 + $1,390,000 - $190,000 = $1,350,000
Therefore correct answer is $1,350,000