What of the following project is a non-normal cash flow project?

(A)

Project cost (negative CF) is followed by a series of positive cash inflows and then several nnegative cash flows.

(B) This isn't correct answer

Project cost (negative CF) is followed by a series of positive cash inflows and also a final positive cash flow when closing the project.

(C)

Project cost (negative CF) is followed by a series of negative cash flow and then a series of positive cash inflows.

(D)

Project cost (negative CF) is followed three years' negative cash flows and then a series of positive cash inflows.