The Racquet Store Has Provided the Following Information for a Recent

The Racquet Store has provided the following information for a recent month regarding the three styles of racquets that it sells:
$$\begin{array} { | l | l | l | l | } \hline & \text { Pro } & \text { Intermediate } & \text { Beginner } \\\hline \text { Sales } & \$ 300,000 & \$ 180,000 & \$ 120,000 \\\hline \text { Variable expenses } & \$ 180,000 & \$ 144,000 & \$ 36,000 \\\hline\end{array}$$ Fixed expenses: $360,000
If sales were to increase $200,000 next month, how much would operating income increase
Assuming that the sales mix remains the same?

A) $120,000
B) $80,000
C) $200,000
D) $100,000