Which of the following is not a true statement?

A$)$ The regular payback period ignores the time value of money.

B$)$ The discounted payback period requires a cutoff hurdle be set.

C$)$ There may be multiple $($regular$)$ internal rates of return $($IRRs$)$ for an independent project.

D$)$ The profitability index is closely related to the regular payback period.