please answer all

Money that the firm has already spent or is committed to spend regardless of whether a project is taken is called an sunk cost. opportunity cost. erosion cost. fixed cost. None of the above. Which of the following capital-budgeting decision criteria are correct? Accept projects that have a positive NPV. O Accept projects that generate an IRR that is greater than the firm's discount rate. O Accept projects that generate an MIRR that is greater than the firm's discount rate, All of the proposed answers are correct, none of the proposed ansers is correct You should accept a project when the: net present value is negative. profitability index is greater than 1.0. O payback period is greater than the required period. modified internal rate of return is less than the required return. none of the proposed answers