Metaline Corp. uses the weighted average method for inventory costs and had the following information available for the year. The number of units transferred to finished goods during the year is: Beginning Work in Process (30% complete, $1,600) 250 units Ending inventory of Work in Process (70% complete) 450 units Total units started during the year 3,700 units

a. 3,900 units.

b. 4,190 units.

c. 3,710 units.

d. 3,700 units.

e. 3,500 units.