Microsoft's main business is producing software and technology services. However, Microsoft incidentally earns revenue from its investments in stocks and bonds. This revenue should be classified as: Non-operating income Net sales Unrelated sales revenue Operating income The allowance method for estimating bad debts typically requires an adjusting entry at the end of the period that affects the value of net receivables. True False Privately held companies must produce financial statements that conform to U.S. GAAP. True False