$\text { Johnstone Supplies, Inc. Accounts Receivable Aging Report, July 31, } 2018$

$\text { Johnstone Supplies, Inc. Accounts Receivable Aging Report, July 31, } 2018$
$$\begin{array} { | r | r | r | } \hline \text { Accounts receivable by due dute } & \text { Account Tatal } & \text { Estimated \% uncollectible } \\\hline \text { Not yet due } & \$ 126,500 & 2 \% \\\hline 1 - 30 \text { days past due } & \$ 89,200 & 12 \% \\\hline 31 - 60 \text { days past due } & \$ 53,600 & 18 \% \\\hline \text { Over 60 days past due } & \$ 31,800 & 35 \% \\\hline\end{array}$$ If Johnstone Supplies,Inc.,writes off $3,081 of un-collectible accounts during August,2018,the unadjusted balance in the allowance for doubtful accounts account on August 31,2018 will be:

A) $30,931.
B) $5,065.
C) $34,012.
D) $1,984.