Which one of the following statements is correct?

A. The number of years required to recover the initial cash investment in a project, is called Pay Back period (PBP)

B. The discount rate that equates the present value of the expected Net Cash Flows (CFs) with the Initial Cash Outflow (ICO) is known as internal rate of return

C. The present value of the proposal's net cash flows, less the proposal's initial cash outflow is known as the Net Present Value (NPV)

D. All of these

Answer: Option D