Which of these options are true? Justify false statements. i. If a project with conventional cashflows (cash outflow at the start, cash inflows later) has a discounted payback period less than the project's life, the NPV of the project can be either positive, or zero, or negative. ii. If a project with conventional cashflows (cash outflow at the start, cash inflows later) has a positive NPV, the profitability index of the project is greater than 1. iii. Project A and B have the same IRR of 20% but need an investment of $1 million and $2 million, respectively. For any discount rate between 0% and 20%, will the NPV of project B be twice that of project A? iv. If a firm has a basket of positive NPV projects and is subject to capital rationing, the profitability index may provide a good ranking measure of the projects, indicating each project's "bang for the buck