(A) cash inflow – cash outflow
(B) cash outflow – cash inflow
(C) PV of cash inflow – PV of cash outflow
(D) PV of cash outflow – PV of cash inflow
(A) cash inflow – cash outflow
(B) cash outflow – cash inflow
(C) PV of cash inflow – PV of cash outflow
(D) PV of cash outflow – PV of cash inflow