Which of the Following Statements Is False

Which of the following statements is false?

A) Multiple IRRs result when a project's cash flows alternate between negative and positive values.
B) If a project has multiple IRRs its NPV profile will cross the x-axis more than once.
C) The general rule of thumb is that a project will have as many IRRs are there are negative cash flows.
D) There are occasions when a project's IRR may involve imaginary numbers.
E) All of the above statements are true.