Abbott Company uses the allowance method of accounting for uncollectible receivables. Abbott estimates that 1% of credit sales will be uncollectible. On January 1, Allowance for Doubtful Accounts had a credit balance of $3,100. During the year, Abbott wrote off accounts receivable totaling $2,000 and made credit sales of $93,000. After the adjusting entry, the December 31 balance in Bad Debt Expense will be Oa. $930 Ob. $3,100 Oc. $2,030 Od. $4,030