Which of the following statements is CORRECT? Select one: O a. If a project is acceptable using NPV criteria, then it will also be acceptable under the less stringent criteria of the payback period. O b. Many financial managers believe the payback period is of limited usefulness because it ignores the time value of money. Hence, it is referred to as the discounted payback period. O c. Major disadvantage of the discounted payback period is the arbitrariness of the process used to select the maximum desired payback period d. Mutually exclusive projects may have more than one IRR