Answer:
C.
21%
Explanation:
As all cashflow are the same, we can solve by dividing the initial cost by annuity per year and look into the PV of a $1 annuity table the result of this quotient:
4000/157,452.98 = 2.540440962
We will find in the row of n = 4 that at 21% we obatin this answer so that is the IRR for the invetment project.