Pineapple's Fruit Smoothies began the year with a $4,200 credit balance in its Allowances for Doubtful Accounts. During the year, it accrued $21,500 of bad debt expense and wrote off accounts totaling $28,000. At year-end, a percentage of the outstanding accounts receivable indicated that a $4,800 allowance should be provided for on that date. The year-end adjustment for bad debt expense should be

$3,000

$4,800

$7,100

$2,300