Which statement concerning the net present volue $($NPY$)$ of an investment or a financing project is correct?

Select one:

$3.$ Any type of project should be accepted if the NPV is positive and rejected if it is negative.

b$.$ A firancing project should be accepted it$,$ and only it$,$ the NPV is exactly equal to zero.

c$.$ An investment project should be accepted only if the NPV is equal to the intial cash flow.

$4.$ An investment project that has positive cash flows for every time period after the initial investment should be accepted.