Time left 1:55:04 When performing sales mix analysis, which one of the following is true: a. The sales mix is usually assumed to change. b. Shifting the sales mix to the product with a lower contribution margin will likely increase the overall contribution margin oc Making changes to the sales mix will likely cause no change in the breakeven point d. Normally the calculation of the breakeven point for multiproduct is much simpler than that for a single product e. Producing and selling more units of the product with a higher contribution margin would likely decrease the breakeven point