The estimated negative cash flows for three design alternatives are shown below. The MARR is $15\%$ per year and the study period is five years. Which alternative is best based on the IRR method? Doing nothing is not an option.

$\backslash$table$[[,$Alternative$],[,$EOY,A$,$B$,$C$],[\backslash$table$[[$Capital$],[$investment$]],0,$$$84,200,$$$65,100,$$$73,700$