Final answer:
The cost per unit of each process is a valuable metric for Duran Manufacturing to analyze and control its costs.
Step-by-step explanation:
The correct answer is C) Duran can only use the cost per unit of each process if all units are fully completed at the end of the accounting period.
The cost per unit of each process is a valuable metric for Duran Manufacturing to analyze and control its costs. However, this metric can only be valid if all units are fully completed, as the cost per unit is calculated by dividing the total cost of the process by the number of completed units.
Therefore, option C, which suggests that Duran can only use the cost per unit if all units are fully completed, is NOT a way in which Duran can use the cost per unit of each process.