Final answer:
Conversion costs are the sum of direct labor and factory overhead. In this case, they total to $28,000, which is option (a).
Step-by-step explanation:
The concept of conversion costs involves the expenses incurred to convert raw materials into finished products. These costs include both direct labor and factory overhead. To determine the conversion costs during the month, we simply add the direct labor costs to the factory overhead costs.
- Direct Labor: $13,000
- Factory Overhead: $15,000
The total conversion costs are calculated as follows:
$13,000 (Direct Labor) + $15,000 (Factory Overhead) = $28,000
Therefore, the correct answer to the question is a. $28,000.