Last month, Verns Assembly Department had a unit materials cost of $4.00 and a unit conversion cost of $5.00. The department transferred out 68,000 units during the month and had 12,000 units in ending work in process inventory that were 40% complete with respect to conversion at the end of the month. If all materials are added at the beginning of the process and conversion costs are added uniformly throughout the process, what is the total cost of the departments ending work in process inventory?

• A : $612,000

• B : $48,000

• C : $72,000

• D : $24,000