Hassel Company Manufactures Two Different Products, X and Y -Refer to the Figure

Multiple Choice

Hassel Company manufactures two different products, X and Y. The company has 100 kilograms of materials and 300 direct labour hours available for production.
The time requirements and contribution margins per unit are as follows:
$\begin{array}{lcc}&\text {Product X}&\text {Product Y}\\\text { Contribution margin per unit } & \$ 4 & \$ 5 \\\text { Materials per unit (kg) } & 1 & 2 \\\text { Direct labour hours per unit } & 4 & 2\end{array}$
-Refer to the figure.What is the equation for the constraint on materials?

A) $1X + $2Y $\leq$ 100
B) $4X + $2Y $\leq$ 100
C) $4X + $5Y $\leq$ 100
D) $4X + $5Y $\leq$ 300