Sales revenue Purchases of direct materials Direct labor Manufacturing overhead Operating expenses Beginning raw materials inventory Ending raw materials inventory Beginning work in process inventory Ending work in process inventory Beginning finished goods inventory Ending finished goods inventory $5,000 $490 $450 $660 $720 $250 S260 $410 $460 S280 $200 What was operating income? O A. $2,900 O B. $5,000 O c. $2,660 O D. $4,280