ASAP PLEASE!!!

Blended Corporation uses the allowance method to account for uncollectible receivables. At the beginning of the year, Allowance for Bad Debts had a credit balance of $1,100. During the year Blended wrote off uncollectible receivables of $2,000. Blended recorded Bad Debts Expense of $2,800. What is Blended's year-end balance in Allowance for Bad Debts? A. $3,900 B. $4,800 C. $1,900 D. $800