Answer with a paragraph for each question

Which one of the following two investment options would you choose that each require an initial investment of $4,000. Option A returns $1,000 at the end of each four years; option B returns $4,000 at the end of the fourth year? Would your answer change if in year 5, option A will produce an additional cash inflow of $5,000 but that option B will never generate another dollar after the fourth year? Will your preference for option A or B change using only the payback method?; Why