Question

materials used in a factory that are not an integral part of the final product, such as cleaning supplies, should be classified as
manufacturing overhead.
a period cost.
direct materials.
administrative expense.

Explanation:

Manufacturing overhead includes indirect costs in production. Cleaning supplies are indirect materials (not part of the final product), so they fit here. Period cost is non - production (like selling). Direct materials are part of the product. Administrative expense is office - related, not factory - production.

Answer:

manufacturing overhead.