Using the percentage-of-receivables method for recording bad debts expense, estimated uncollectible accounts are $23,000. If the balance of the Allowance for Doubtful Accounts is $2,000 debit before adjustment, what is the amount of bad debt expense for that period?: Select one: O a. $21,000. O b. $25,000. Oc. $2,000. Od. $23,000.