What is the IRR for the following project if its initial after-tax cost is $5,000,000 and it is expected to provide after-tax operating cash inflows of $1,800,000 in year 1, $1,900,000 in year 2, $1,700,000 in year 3 and $1,300,000 in year 4? O a. 0.00% O b. 13.57% 0 None of the above Od 15.57%