(24 points) Rey's Manufacturing manufactures wheelbarrows. Each wheelbarrow must pass through the Assembly Department (first) and the Finishing Department (second). Rey's uses the FIFO method in their process costing system. The following data is available for December for the Finishing Department 1. Units: Beginning inventory-12/1 1,200 Beginning WIP 12/1 85% complete wrt Finishing Materials and 500% complete wrt Finishing conversion Assembly Costs (Transferred in _-_-Costs) $2,070 $6,150 Finishing Materials Finishing Conversion Transferred in from Assembly in December. 18,000 r costs Assembly costs transferred in 950 Ending inventory- 12/31 90% complete wrt Finishing Materials and 80% complete wrt Finishing Conversion $1,179,000 $65,106 Finishing materials costs Finishing conversion costs $193,305 Under FIFO, what was equivalent units of production for December for each element (Assembly Costs, Finishing Materials, and Finishing Conversion)? Under FIFO, what was the cost per equivalent unit in December for each element? What was the total cost of units transferred out during December? What was the total cost of units in ending inventory at December 31? a. b. c. d