Question $13(3\mathrm{.}03$ points$)$

Assume $100$ males apply for a particular job, and $50$ are hired. Assume $100$ females apply for the same job using the same selection method used to select males. According to the $\frac{4}{5}$ ths rule, what is the minimal number of females that would have to be hired for the selection method not to produce adverse impact against females?

$4$

$40$

$45$

$80$