What is the internal rate of return of an investment that requires a 10 percent minimum rate of return and has the following projected cash flows: Yr0 = -100, Yr1 = 25, Yr2 = 35, Yr3 = 45, Yr4 = 35, and Yr5 = 30?

a.21.35 percent

b.22.24 percent

c.20.05 percent

d.19.33 percent