Answer :
On the income statement, the statement that would be classified as a period cost is: C) Promotion Expense.
What is period cost?
Period cost can be defined as those cost that is excluded in a product cost and this occur because the cost are non production cost or because the cost are not related to factors of production or what is needed for production to take place.
Promotion expense has to do with the expense a company incurred as a result of promoting their product or brand.
Therefore the correct option is C.
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