dll Assuming a project's initial cost is the only outflow and the inflows are all positi these to increase I. ARR II. IRR III. discounted payback Assuming a project's initial cost is the only outflow and the inflows are all positive, an increase in WACC will cause which of these to decrease I. NPV II, IRR III. Profitability Index none of these all three I and I Il only Tonly