The Allowance for Doubtful Accounts has a debit balance of $3,000 at the end of the year (before adjustment), and the balance of Allowance for Doubtful Accounts is estimated at $12,000 . If Accounts Receivable are $700,000, the amount of the adjusting entry to record the provision for doubtful accounts using the analysis of receivables method is ________

a. $16,000
b. $9,000
c. $12,000
d. $15,000

d