The Mildmanner Corporation Has the Following Data for the Current

The Mildmanner Corporation has the following data for the current year: $\begin{array}{lrr}\text { Selling price per unit } & \$ 15 \\\text { Variable cost per unit } & \$ 9 \\\text { Fixed costs } & \$ 45,000 \\\text { Units sold } & 10,000 \text { units }\end{array}$ The margin of safety expressed in sales revenue will be

A) $75,000.
B) $37,500.
C) $45,000.
D) $112,500