The Formula That Can Be Used to Calculate Sales Dollars

The formula that can be used to calculate sales dollars necessary in order to earn a target income is

A) (Fixed costs + Contribution margin) /(Contribution margin ratio)
B) (Fixed costs + Target income) /(Contribution margin ratio)
C) (Fixed costs + Variable costs) /(1 - Variable cost ratio)
D) (Fixed costs + Target income ) /(1 - Sales ratio)
E) all of these are correct