Which of the following projects has normal cashflows?

Year 0 Year 1 Year 2 Year 3 Year 4 Year 5

L -100 20 350 -50 10 10

M -200 -30 -30 30 30 -20

N 200 30 30 30 -30 -30

O -200. -60 -60. 30 30. 30

P 100 -10 -10 -150 100 10

Select one: a. N b. P c. L d. M e. O