Zed Company Sells Two Kinds of Mainframe Computer Power Supplies

Zed Company sells two kinds of mainframe computer power supplies.The company projected the following cost information for the two products: $$\begin{array} { | l | r | r | } \hline & { \begin{array} { l } \text { Standard } \\\text { Supply }\end{array} } &{ \begin{array} { l } \text { Heavy-Duty } \\\text { Supply }\end{array} } \\\hline \text { Unit selling price } & \$ 250 & \$ 120 \\\hline \text { Unit variable cost } & \$ 110 & \$ 50 \\\hline \begin{array} { l } \text { Number of units produced and } \\\text { sold }\end{array} & 7,000 & 3,000 \\\hline\end{array}$$ Assume that total fixed costs are $428,400.How many units of the standard supply unit would be included in the total number of units required to break-even with the projected sales mix (round your answer to the nearest whole unit) ?

A) 3,600 units
B) 2,520 units
C) 1,080 units
D) 2,040 units