Which of the following statements is / are TRUE about the payback period method of investment appraisal? (i) It uses discounted profits (ii) It may result in a project with a negative NPV being accepted (iii) It looks at the whole life of the project (iv) It favours lower risk projects (on the basis that risk is time related) (i) and (iii) (i) and (iv) O (ii) and (iv) (ii) and (iii)