6. (15 points) Discount rate is 10%. You have access to four projects with the following cash flow structures: 0 2 3 100 Year A B D -100 - 150 -50 -120 1 100 150 50 50 150 100 50 150 250 150 150 (a) (5 points) Suppose you have unlimited funds. Which of these four projects will you take? (b) (5 points) Suppose you have 150. Which projects are you going to take? (C) (5 points) Suppose you have 170. Which projects are you going to take