Which of the Following Statements Is True About Capital Budgeting

Which of the following statements is true about capital budgeting analysis?

A) Higher discount rates are used for computing the net present values (NPVs) of riskier cash flows.
B) A project with only cash outflows and no cash inflows would have two internal rates of return (IRRs) .
C) The payback period method should be used for capital budgeting decisions if there is a conflict in the project rankings as per the NPV method and the IRR method.
D) The net present value (NPV) method should be used to evaluate independent projects, and the internal rate of return (IRR) method for mutually exclusive projects.
E) The payback period method should be used for capital budgeting decisions if the project has multiple cash outflows.