23. Under the estimated bad debts method of recording bad debts, which of the following entries, if any, would be made to write off actual uncollectible accounts of $6,500?

a.	Allowance for Doubtful Accounts 6,500 Accounts Receivable 6,500
b.	Bad Debt Expense 6,500 Allowance for Doubtful Accounts 6,500
c.	Bad Debt Expense 6,500 Accounts Receivable 6,500
d.	no entry is needed