Final answer:
Cost objects refer to the items or entities for which costs are measured or assigned, and they can include products, customers, and departments.
Step-by-step explanation:
All of these answers are correct.: Cost objects refer to the items or entities for which costs are measured or assigned. In business, cost objects can include products, customers, and departments. For example, a manufacturing company may track the cost of producing a specific product, the cost associated with serving a particular customer, and the cost incurred by different departments within the organization. Cost objects are essential for analyzing and managing costs effectively.