Which of the Following Is Correct with Regard to Breakeven

Short Answer

Which of the following is correct with regard to breakeven analysis?
Variable costs are really all that is important.
Fixed costs are all that really is important.
Some costs are unaffected by the number of units of product that are sold.
Generally speaking, retailers should charge higher prices so that they will reach the breakeven point earlier.
Breakeven analysis fails to take into account the slope of the demand curve.