Zee Corporation had 3,600 units one-fourth completed at the beginning of the period, 12,000 units were completed and transferred during the period, 2,000 units were one-fifth completed at the end of the period, and the following manufacturing costs were debited to the departmental work in process account during the period:

Work in process, beginning of period ($8 per unit for Direct Materials) $37,200

Costs added during period: Direct materials 83,200 Direct labor 62,000 Factory overhead 24,800

Assume that all direct materials are placed in process at the beginning of production and Zee Corporation uses FIFO method of inventory costing.

The number of equivalent units for conversion cost would be:

a. 10,400

b. 14,000

c. 11,500

d. 11,200