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 Karling Corporation for the year just ended.
$\begin{array}{|l|r|}\hline \text { Sales } & \$ 990 \\\hline \text { Raw materials inventory, beginning } & \$ 40 \\\hline \text { Raw materials inventory, ending } & \$ 70 \\\hline \text { Purchases of raw materials } & \$ 120 \\\hline \text { Direct labour } & \$ 200 \\\hline \text { Manufacturing overhead } & \$ 230 \\\hline \text { Administrative expenses } & \$ 150 \\\hline \text { Selling expenses } & \$ 140 \\\hline \text { Work-in-process inventory, beginning } & \$ 70 \\\hline \text { Work-in-process inventory, ending } & \$ 50 \\\hline \text { Finished goods inventory, beginning } & \$ 120 \\\hline \text { Finished goods inventory, ending } & \$ 160 \\\hline\end{array}$

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

A) $190.
B) $90.
C) $150.
D) $160.