Selected financial information for Shadyside Manufacturing is presented in the following table (000s omitted). Sales revenue $4,000 Purchases of direct materials $490 Direct labor $460 Manufacturing overhead $630 Operating expenses $750 Beginning raw materials inventory $280 Ending raw materials inventory $230 Beginning work in process inventory $410 Ending work in process inventory $460 Beginning finished goods inventory $260 Ending finished goods inventory $230 What was cost of goods sold? A. $1,660 B. $1,550 C. $1,610 D. $920