Sales revenue$ 4,000Purchases of direct materials$ 400Direct labor$ 450Manufacturing overhead$ 620Operating expenses$ 650Beginning raw materials inventory$ 200Ending raw materials inventory$ 180Beginning work in process inventory$ 320Ending work in process inventory$ 410Beginning finished goods inventory$ 250Ending finished goods inventory$ 200What was cost of goods manufactured?A) $1,580B) $1,380C) $1,400D) $1,490