Answer:
c. The level of unavoidable fixed costs.
Explanation:
Product line in marketing is considered as a group of different products that are related to each other and often targets to the same thing. They are marketed and created under a single brand and sold by the same company. An example of it is product line hair care like shampoo, hair gel, hair wax, hair oil, etc.
Deciding a product lining is very essential to the organization. The growth and the expansion of the company depends upon the product lining of the future options. Therefore, dropping off a product line or keeping it should be decided properly. It also affects the overall morale of the company.
The relevant margin that is generated by the product line of the company should also be checked before deciding.