Wellington Corp. has outstanding accounts receivable totaling $6.5 million as of December 31 and sales on credit during the year of $24 million. There is also a credit balance of $12,000 in the allowance for doubtful accounts. If the company estimates that 6% of its outstanding receivables will be uncollectible, what will be the amount of bad debt expense recognized for the year?

a). $ 378,000.
b). $ 390,000.
c). $1,440,000.
d). $ 402,000.