you are evaluating the following investments opportunities:

ProjectA: This project requires $2000 upfront, and pays you $500 at the end of each of the first 2 years, and an additional lump-sum of $1200 at the end of year 3

PorjectB: This project requires $2000 upfront, and pays you $600 at the end of each of the first 2 years, and an additional lump-sum of $1000 at the end of year 3

which project has a smaller IRR, and which project is more attractive?

a) Project A; Project A

b) Project A; Project B

c) Project B; Project A

d) Project B; Project B