Which of the following statements is CORRFCT? Assume that the project being considered has necral cawh flows, with one outflow followed by a series of inflows. The project's regular payback is unaffected by changes in the required rate of return. If a project's NPV is less than zero, then its required rate of return must be less thas IRR. The project's IRR increases as the required rate of return declines. If there are sign reversals in the cash flow steam, then MIRR has multiple solutions