Calculate a Department's Gross Profit on Sales Given the Following

Multiple Choice

Calculate a department's gross profit on sales given the following: $$\begin{array} {| l | r |} \hline\text { Sales } & \$ 1,600 \\\hline \text { Operating expenses } & 350 \\\hline \text { Cost of goods sold } & 900 \\\hline\end{array}$$

A) $350.
B) $700.
C) $1,050.
D) $1,250.