Using the percentage of receivables method for recording bad debts expense, estimated uncollectible accounts are $25,000 at the end of the year. If the balance of the Allowance for Doubtful Accounts is $8,000 debit before adjustment; what is the amount of bad debt expense for that period?
a) $25,000
b) $8,000
c) $33,000
d) $17,000