What is Bad Debt Expense for 2017, accounting homework help

Sunland Company had a 1/1/17 balance in the Allowance for Doubtful Accounts of $31500. During 2017, it wrote off $20900 of accounts and collected $6680 on accounts previously written off. The balance in Accounts Receivable was $640000 at 1/1 and $750000 at 12/31. At 12/31/17, Smithson estimates that 6% of accounts receivable will prove to be uncollectible. What is Bad Debt Expense for 2017?

A.

B.

C.

D.