23) A project's cost is the difference between: A) future cash flows and its net profit. B) cash inflows and outflows. C) NPV and the present value of future cash flows. D) assets and liabilities. E) risk and its market value. 24) A project's IRR is the: A) discount rate that results in a net present value equal to the project's initial cost. B) discount rate that causes a project's after-tax income to equal zero. C) rate of return required by the project's investors. D) project's current market rate of return. E) None of the above