In the case of a manufacturing company, which of the following statements regarding product costs is true? In computing operating income, product costs are deducted from revenue when the production process is completed. O Product costs appear on financial statements only when products are sold. In computing operating income, product costs are deducted from revenue as expenditures are made. O Product costs associated with unsold finished goods and work in process appear on the balance sheet as assets. None of the above statements is true