What Is Meant by a Product's Contribution Margin (CM) Ratio

Multiple Choice

What is meant by a product's contribution margin (CM) ratio?

A) The ratio of contribution margin to total sales revenue.
B) The ratio of sales to breakeven sales.
C) The ratio of contribution margin to net operating income.
D) The ratio of price minus variable cost per units.
E) The ratio that can be multiplied by percentage change in sales revenue to get percentage change in profit.