The following inventory balances have been provided for the most recent year: Beginning Ending Raw materials...... $21,000 $15,000 Work in process. $18,000 $29,000 Finished goods $57,000 $33,000 The cost of goods manufactured was $714,000. What was the cost of goods sold? Select one: O a. $738,000 O b. $693,000 O c. $714,000 O d. $733,000