Which of the following statements is true regarding the two allowance procedures used to estimate bad debts? Oa. The percentage of net credit sales method takes into account the existing balance in the Allowance for Doubtful Accounts account. Ob. The aging of accounts receivable method takes into account the existing balance in the Allowance for Doubtful Accounts account. Oc. The direct write-off method does a better job of matching revenues and expenses. Od. The direct write-off method takes into account the existing balance in the Allowance for Doubtful Accounts account