When the IRR system for evaluating projects is used,

A) there must be exactly as many IRRs as there are sign changes in the cashflows.

B) a disadvantage of this method is that some cash flows will be ignored.

C) it should always be applied in conjunction with the discounted payback system of project evaluation.

D) the result of evaluating mutually exclusive projects may differ from the evaluation of the NPV rule of its two projects habe a different scale of timing of invesment and cash flow retuns.

E) always gives the same result as the NPV criterion when choosing from mutually exclusive projects.

When the IRR system for evaluating projects is used, a) there must be exactly as many IRR's as there are sign changes in the cash flows. b) a disadvantage of this method is that some cash flows will be ignored. c) it should always be applied in conjunction with the discounted payback system of project evaluation. d) the result of evaluating mutually exclusive projects may differ from the evaluation of the NPV rule if the two projects have a different scale or timing of investment and cash flows returns e) always gives the same result as the NPV criterion when choosing from mutually exclusive projects