There are four principal decision models for evaluating and selecting investment projects: Net present value (NPV) Profitability index (PI) Internal rate of return (IRR) Payback period (PB) Which method or methods adjust the project's net cash flows (NCFs) to recognize the effects of the magnitude, timing, and riskiness of the project's cash flows? O NPV, IRR, PI, and discounted PB O IRR O PI O NPV and discounted PB Read the following statements and categorize whether they characterize the IRR, NPV, PB, or PI decision criteria: Statement IRR NPV PB PI Generates multiple solutions if used to analyze nonconventional projects Provides an easy-to-interpret benchmark value, since a value of one indicates a project that earns the firm's minimum acceptable return If its value is greater than or equal to zero, then the project should be accepted