Which of the following statements is true?
- Net operating income is income before interest and taxes.
- All other things the same, an increase in unit sales will normally result in an increase in the return on investment.
- A change in sales has no effect on margin and turnover.
▸ Both statements I and II are true.
▸ Both statements I and III are true.
▸ All of the statements are true.
▸ None of the statements are true.