15. Ajman Corporation had a 1/1/18 balance in the Allowance for Doubtful Accounts of $30,000. During 2018, it wrote off $21,600 of accounts and collected $6,300 on accounts previously written off. The balance in Accounts Receivable was $600,000 at 1/1 and $720,000 at 12/31. What should Ajman report as its Allowance for Doubtful Accounts at 12/31/18? A. $2,102 B. $6,300. C. $14,400. D. $14,700