An investment that provides annual cash flows of $$20,100$ for $8$ years costs $$87,500$today. At what rate would you be indifferent between accepting the investment and rejecting it$?$a$.17\mathrm{.}60\%$b$.16\mathrm{.}74\%$C$\mathrm{.}15\mathrm{.}93\%$d$\mathrm{.}15\mathrm{.}90\%$e$\mathrm{.}15\mathrm{.}51\%$