Which of the Following Statements Is False

Which of the following statements is false?

A) In general, the IRR rule works for a stand-alone project if all of the project's positive cash flows precede its negative cash flows.
B) There is no easy fix for the IRR rule when there are multiple IRRs.
C) The payback rule is primarily used because of its simplicity.
D) No investment rule that ignores the set of alternative investment alternatives can be optimal.