The following table represents the cash flows of Stone and Cement Shop:

$\backslash$table$[[$Year$,$Cash flows $($rand$)],[3,400000],[5,-700000],[7,-800000],[8,-100000],[10,1000000]]$

Money can be borrowed at $14,25\%$ per year and invested at a rate of $8,7\%$ per year. Calculate the MIRR, if the future value of the cash inflows is equal to R$1717243\mathrm{.}80.$

a$.12,40\%$

b$.4,26\%$

c$.9,25\%$

d$.4,82\%$