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 Karlist Corporation for the just completed year.
$\begin{array} { | l | r | } \hline \text { Sales } & \$ 800 \\\hline \text { Raw materials inventory, beginning } & \$ 60 \\\hline \text { Raw materials inventory, ending } & \$ 70 \\\hline \text { Purchases of raw materials } & \$ 180 \\\hline \text { Direct labour } & \$ 100 \\\hline \text { Manufacturing overhead } & \$ 190 \\\hline \text { Administrative expenses } & \$ 110 \\\hline \text { Selling expenses } & \$ 150 \\\hline \text { Work-in-process inventory, beginning } & \$ 70 \\\hline \text { Work-in-process inventory, ending } & \$ 80 \\\hline \text { Finished goods inventory, beginning } & \$ 120 \\\hline \text { Finished goods inventory, ending } & \$ 160 \\\hline\end{array}$


-What was the Gross Margin (in thousands of dollars) for the year?

A) $350.
B) $130.
C) $390.
D) $190.