Knowledge Check 01 All of the following are weaknesses of the payback period: (You may select more than one answer. Single click the box with the question mark to produce a check mark for a correct answer and double click the box with the question mark to empty the box for a wrong answer. Any boxes left with a question mark will be automatically graded as incorrect.) | ?it uses cash flows, not income, it is easy to use. it ignores all cash flows after the payback period ?it ignores the time value of money.