OPTION - C. Cost of goods sold.
Product cost are those cost which are incurred in the process of production of a finished goods such as raw material, direct Labor and Overhead. And these are observed when the goods are sold.
Period cost are those cost which are incurred for a specific period.
Selling Expenses are those expenses which are incurred for a product to sales. Eg - Advertising Expenses, sales personnel Expenses.
Administrative expenses are those Expenses which are incurred in management of a product. Eg - Salaries, etc
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