Engineering change orders, maintenance of equipment used in manufacturing, and product design costs are examples of: Unit costs. Unit, batch, and customer-sustaining costs, respectively. Facility-level costs. Batch costs. Product-level costs.

Product-level costs.

Explanation:

The equipment maintenance that used in the manufacturing, the design of the product, and the engineering change in orders represent the example of product level cost as they are relevant with the product or directly related with the product

So as per the given situation the last option is right

Hence, the same would be relevant

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