In which of the following types of cases does a plaintiff attempt to prove that while an employer's policy or practice appears to apply to everyone equally, its actual effect is that it disproportionately limits employment opportunities for a protected class?a. Unequal-distribution harassment casesb. Disparate-treatment casesc. Disparate-treatment cases, disparate-impact cases, and unequal-distribution cases.d. Disparate-impact cases
