Johnson Corporations Unadjusted Trial Balance at year-end included the following accounts: Debit Credit Sales (75% represent credit sales) (credit)$1,152.000 Accounts Receivable (debit) $288,000 Allowance for Doubtful Accounts (credit) $2,184 Compute the uncollectible account expense, and make the appropriate journal entry, for the current year assuming the uncollectible account expense is determined as follows: a. Income statement approach, 1% of total sales. b. Income statement approach, 1.5% of credit sales. c. Balance sheet approach. The estimate based on an aging of accounts receivable is that an allowance of $12,000 would be appropriate.