please help with this exercise . thanks

23. Wellington Corp. has outstanding accounts receivable totaling $1.27 million as of December 31 and sales on credit during the year of $6.4 million. There is also a debit balance of $6,000 in the allowance for doubtful accounts. If the company estimates that 2% of its accounts receivable will be uncollectible, what will be the balance in the allowance for doubtful accounts after the year-end adjustment to record bad debt expense? [a] $19,400. [b] $31,400. (c) $25,400. [d] $25,280