Kambic Co. estimates its uncollectible accounts expense to be 2% of credit sales. Kambic's credit sales for 20X5 were $1,300,000. During 20X5, Kambic wrote off $18,000 of uncollectible accounts. Kambic's allowance for uncollectible accounts had a $15,000 credit balance of January 1, 20X5. In its December 31, 20X5 balance sheet, what amount should Kambic report as allowance for uncollectible accounts?

A. $17,000

B. $18,000

C. $20,000

D. $23,000

E. None of the above.