Mendenhall Glacier Company uses the allowance method to account for uncollectible accounts receivable. Bad debt expense is established as a percentage of credit sales. For 2021, net credit sales totaled $4,200,000, and the estimated bad debt percentage is 1.25%. The allowance for uncollectible accounts had a credit balance of $40,000 at the beginning of 2021 and $42,000, after adjusting entries, at the end of 2021. Question What is the amount of accounts receivable written off during 2021? $40,000 $42,000 $50,500 $52,500