4. Comparison of alternative decision criteria There are four principal decision models for evaluating and selecting investment projects: - Net poesent value (NPV) - Prohtabity index (PI) - Internal rate of return (IRR) - Payback penod (PE) Which criterin assume that the project's net eash fows (NCFs) are reinvested at the fimm's cost of capitan? P1 Nor, PL, and discourited PE Puscosinted PS Which criteria assume that the project's net cash flows (NCF5) are reinvested at the firms cost of capitac PI NPV, Pl, and discounted PB Discounted pg 1.