Answer:
The correct option is 2,3 and 4 only
Explanation:
If the net present value is zero it means that present of project's cash inflows is the same as the initial cost of project not that it exceeds it,hence option 1 is wrong.
However, a zero net present value means that the investment produces the exact required rate of return which is the internal rate of return, a rate at which present value of inflows equate initial project outlay.
Also,any delay in receiving project's inflows say by year would mean that the discount factor applied is lower resulting in a lower present value of cash such cash inflow and a negative net present value overall.