How does the timing and the size of cash flows affect the payback method? a) assume the project does pay back within the project's lifetime. b) a delay in receiving the cash inflows will decrease the payback period. c) an increase in the size of the first cash inflow will decrease the payback period, all else held constant. d) receiving every cash inflow sooner will increase the payback period, all else held constant. e) the timing but not the size of the cash flows affects the payback period.