Department K had 3,000 units 45% completed in process at the beginning of the period; 17,000 units completed during the period; and 1,200 units 40% completed at the end of the period. What was the number of equivalent units of production for the period for conversion if the first-in, first-out method is used to cost inventories? Assume the completion percentage applies to both direct materials and conversion cost.

1. 16,130
2. 15,650
3. 16,310
4. 18,35