The following data (in thousands of dollars) have been taken from the accounting records of Karlana Corporation for the just completed year. Sales $910 Raw materials inventory, beginning $80 Raw materials inventory, ending $20 Purchases of raw materials $100 Direct labour $130 Manufacturing overhead $200 Administrative expenses $160 Selling expenses $140 Work in process inventory, beginning $40 Work in process inventory, ending $10 Finished goods inventory, beginning $130 Finished goods inventory, ending $150 The cost of the raw materials used in production during the year (in thousands of dollars) was: Group of answer choices $40. $120. $160. $180