The Allowance for Doubtful Debts Currently Has a Credit Balance

The Allowance for doubtful debts currently has a credit balance of $900. After analysing the accounts in the accounts receivable subsidiary ledger using the ageing of accounts method, the company's management estimates that bad debts will be $15 000. What will be the amount of Bad debts expense reported on the income statement?

A) $14 900
B) $15 000
C) $14 100
D) $15 900