Reference: 08-02
the Following Is Allison Corporation's Contribution Format Income

Reference: 08-02
The following is Allison Corporation's contribution format income statement for last month: $$\begin{array} { | l | c | } \hline \text { Sales } & \$ 800,000 \\\hline \text { Less variable expenses } & 300,000 \\\hline \text { Contribution margin } & 500,000 \\\hline \text { Less fixed expenses } & 400,000 \\\hline \text { Net income } & \$ 100,000 \\\hline\end{array}$$ The company has no beginning or ending inventories. The company produced and sold 10,000 units last month.
-If the number of units sold increases by 10%, how much will net income increase

A) $10,000.
B) $20,000.
C) $5,000.
D) $50,000.