Which of the following statements is CORRECT?

	a.	The definition of "normal" cash flows is that the cash flow stream has one or more negative cash flows followed by a stream of positive cash flows and then one negative cash flow at the end of the project's life.
	b.	If a project has "normal" cash flows, then it will have exactly two real IRRs.
	c.	If a project has "normal" cash flows, then its IRR must be positive.
	d.	If a project has "normal" cash flows, then its MIRR must be positive.
	e.	If a project has "normal" cash flows, then it can have only one real IRR, whereas a project with "nonnormal" cash flows might have more than one real IRR.