To determine the cost of producing each job or job lot, companies use a:

• A. periodic inventory system
• B. perpetual inventory system
• C. job order cost system
• D. process cost system

Answer: (C)

Verified step by step guidance

1. Understand the concept of costing systems: Companies use different costing systems to allocate costs to products or services. The two main systems are job order costing and process costing. Job order costing is used for unique or custom jobs, while process costing is used for mass production of similar items.
2. Identify the purpose of the question: The problem is asking which system is used to determine the cost of producing each job or job lot. This implies a focus on individual, customized production rather than continuous, homogeneous production.
3. Clarify the characteristics of a job order cost system: A job order cost system tracks costs for specific jobs or job lots. It assigns direct materials, direct labor, and overhead costs to each job individually, making it suitable for customized production.
4. Compare with other systems: A periodic inventory system and perpetual inventory system are methods of tracking inventory, not costing systems. A process cost system is used for continuous production of identical units, which does not fit the context of individual jobs or job lots.
5. Conclude the reasoning: Based on the explanation, the correct system for determining the cost of producing each job or job lot is the job order cost system, as it is designed to handle customized production and track costs for individual jobs.