Zero Co. uses the allowance method of accounting for bad debts. Their Allowance for Doubtful Accounts account has a year- end debit balance, prior to adjustment, of $800. The bad debts are estimated at 5% of $160,000, the year-end accounts receivable. Prepare the year end adjusting journal entry for bad debt expense. Bad debt expense DR 8000 Allowance for doubtful account 8000 CR Allowance for doubtful account 8800 DR Bad debt expense CR 8800 Bad debt expense DR 8800 Allowance for doubtful account 8800 CR none of them