The Following Data (In Thousands of Dollars) Have Been Taken

The following data (in thousands of dollars) have been taken from the accounting records of Karlana Corporation for the year just ended.
$\begin{array}{|l|r|}\hline \text { Sales } & \$ 910 \\\hline \text { Raw materials inventory, beginning } & \$ 80 \\\hline \text { Raw materials inventory, ending } & \$ 20 \\\hline \text { Purchases of raw materials } & \$ 100 \\\hline \text { Direct labour } & \$ 130 \\\hline \text { Manufacturing overhead } & \$ 200 \\\hline \text { Administrative expenses } & \$ 160 \\\hline \text { Selling expenses } & \$ 140 \\\hline \text { Work-in-process inventory, beginning } & \$ 40 \\\hline \text { Work-in-process inventory, ending } & \$ 10 \\\hline \text { Finished goods inventory, beginning } & \$ 130 \\\hline \text { Finished goods inventory, ending } & \$ 150 \\\hline\end{array}$



-What was the cost of the raw materials used in production (in thousands of dollars) during the year?

A) $180.
B) $40.
C) $120.
D) $160.