Which of the following statements is true when using the percentage of net credit sales method?

Which of the following statements is true when using the percentage of net credit sales method? a.) This method is estimating a percent of credit sales made for which payment will not be collectible. b.) This method is estimating a percent of sales made for which payment will not be collectible. c.) This method is determining the actual dollar value of credit sales made for which payment will not be collectible. d.) This method is estimating a percent of cash sales made for which payment will not be counted