Final answer:
b) 'On the job cost sheet to be used to prepare a cost summary'.
Direct materials, direct labor, and estimated manufacturing overhead are tracked on the job cost sheet, which is used to prepare a cost summary for each job.
Step-by-step explanation:
The student's question relates to how direct materials, direct labor, and estimated manufacturing overhead are tracked in a manufacturing setting. These costs are associated with the production process where a firm converts inputs into outputs, forming part of the total costs within a business. Direct materials and direct labor are indeed tracked on the job cost sheet, which prepares a cost summary for each job.
For invoicing purposes, these costs would be summarized and used by the accounting department, which may use a spreadsheet to ensure that all costs are captured. However, the actual tracking of these costs typically begins on the job cost sheet, reflecting option b) 'On the job cost sheet to be used to prepare a cost summary'.