The Following Data Is Available -Using the Gross Profit Method,the Cost of Goods Sold Would

The following data is available: $$\begin{array} { | r | r | } \hline \text { Net sales, first month } & \$ 13,000 \\\hline \text { Normal gross profit } & 45 \% \\\hline \text { Beginning inventory } & 8,000 \\\hline \text { Net purchases } & 7,000 \\\hline\end{array}$$
-Using the gross profit method,the Cost of goods sold would be:

A) $15,000.
B) $7,150.
C) $7,850.
D) $5,850.