An aging of a company's accounts receivable indicates that $10400 are estimated to be uncollectible. If Allowance for Doubtful Accounts has a $3080 credit balance, the adjustment to record bad debts for the period will require a O debit to Bad Debt Expense for $7320. . debit to Bad Debt Expense for $20400. O credit to Allowance for Doubtful Accounts for $10400. O debit to Allowance for Doubtful Accounts for $7320