What is the IRR for the following projects if its inital cost is $$5,000,000$ and it is expected to provide after$-$tax operating cash flows of $($$$1,800,000)$ in year $1,$ $$2,900,000$ in year $2,$ $$2,700,000$ in year $3$ and $$2,300,000$ in year $4?$

a$.5\mathrm{.}83\%$

b$.9\mathrm{.}67\%$

c$.11\mathrm{.}44\%$

d$.$ none of the above

Asking for step$-$by$-$step solution. TY