1) Which of the following is an example of a change in accounting estimate? A Switching from straight-line to the declining balance method of depreciation. B Using 3% for the allowance for bad debts, instead of 1% as stated in the company's procedures manual. C Increasing the % of allowance for bad debts from 3% to 5% because of the increased possibility of bankruptcy by customers. D Changing from weighted average to the first-in, first- out method of inventory valuation