Lorri's income statement is as follows:

Sales (5,000 units) $75,000 Less variable costs - 24,000 Contribution margin $51,000 Less fixed costs - 12,000 Net income $ 39,000

If sales increase by 1,000 units, profits will:

Select one:

A. Increase by $5,000

B. Increase by $12,000

C. Increase by $2,400

D. Increase by $10,200