The weighted average contribution margin per unit for a company that sells two products and sells twice as many units of product A as it sells of product B may be described by which of the following?

A)The sum of the contribution margins per unit of each product divided by 2

B) The contribution margin per unit of product A multiplied by 2/3 plus the contribution margin of product B multiplied by 1/3

C) The contribution margin ratio of product A multiplied by 2/3 plus the contribution margin ratio of product B multiplied by 2/3

D)The selling price of product A multiplied by 2/3 plus the selling price of product B multiplied by 1/3