An aging of a company's accounts receivable indicates that the estimate of the uncollectible accounts totals $4,000. If Allowance for Doubtful Accounts has a $800 credit balance, the adjustment to record the bad debt expense for the period will require a Oa. credit to Allowance for Doubtful Accounts for $4,000 Ob. debit to Allowance for Doubtful Accounts for $3,200 Oc debit to Allowance for Doubtful Accounts for $4,000 Od. debit to Bad Debt Expense for $3,200