The company should use process costing. Since there are many similar items, process costing is a better fit than job order costing.
The conversion cost is $72,000: the sum of direct labor, factory depreciation expense, and utility expense.
The expense recognition principle requires that expenses follow the revenue. Product costs are assigned to the product because they are associated with the revenue from the sale of the product. The cost is transferred from inventory to cost of goods sold when the item is sold. This matches the revenue from the sale with the cost of the item being sold. Period costs are expensed when incurred because they are not related to a specific product but are instead related to the time period in which revenue is earned.
B, D, C, A.
Management uses the activity considered to be the cost driver and multiplies that rate by the activity for each specific job. The result is the amount of overhead applied to that specific job.
Expenses normally have a debit balance, and the manufacturing overhead account is debited when expenses are incurred to recognize the incurrence. When the expenses are allocated to the asset, the work in process inventory, the expense account manufacturing overhead is credited. This is in accordance with the expense recognition principle. The timing of the expense follows the revenue, and when the costs are allocated to inventory, they become a part of the product’s cost and are recognized when the asset is sold.