O'Briens Company, Which Has Only One Product, Has Provided the Following

O'Briens Company, which has only one product, has provided the following data concerning its most recent month of operations:
$\begin{array} { | l | r | } \hline \text { Selling price } & \$ 165 \\\hline \text { Units in beginning inventory } & 0 \\\hline \text { Units produced } & 4,300 \\\hline \text { Units sold } & 3,800 \\\hline \text { Units in ending inventory } & 500 \\\hline \text { Variable costs per unit: } & \\\hline \text { Direct materials } & \$ 31 \\\hline \text { Direct labour } & \$ 43 \\\hline \text { Variable manufacturing overhead } & \$ 5 \\\hline \text { Variable selling and administrative } & \$ 8 \\\hline \text { Fixed costs: } & \\\hline \text { Fixed manufacturing overhead } &\$ 165,400 \\\hline \text { Fixed selling and administrative } & \$ 80,200 \\\hline\end{array}$


-What was the operating income (loss) for the month under variable costing?

A) ($7,200) .
B) $41,100.
C) $50,800.
D) $47,300.