Which of the following statements is true?

Group of answer choices

In general, there can be as many internal rates of return (IRRs) as the number of times the project's cash flows change sign over time.

Net present value (NPV) always is less reliable than IRR for an investment opportunity.

An internal rate of return (IRR) cant be a negative number for an investment opportunity.

The payback investment rule is based on the notion that an opportunity that pays back its initial investments quickly is not a good idea.