Answer:
The correct option is a. 1,421,200.
Explanation:
Note: See the attached excel file for the calculation of the equivalent units for the conversion cost calculation.
In the attached excel file, the following working is used:
Units started and completed = Completed in September and transferred to Department D - Beginning work-in-process inventory = $1,220,000 - $82,000 = $1,138,000
From the attached excel file, we have:
Total equivalent units = $1,421,200
Therefore, the correct option is a. 1,421,200.