What Did the U

What did the U.S.Supreme Court rule in Ricci v.DeStefano,the case in the text involving whether an employer,due to fear of disparate impact discrimination litigation,may refuse to certify test results that would make a disproportionate number of white candidates eligible for promotion in comparison with minority candidates ?

A) That the employer had engaged in illegal disparate impact discrimination.
B) That the employer had engaged in illegal disparate treatment discrimination.
C) That the employer had acted appropriately because there was a credible threat of a lawsuit.
D) That the employer had acted appropriately both because there was a credible threat of a lawsuit and because the employer had established, using objective facts, that such a lawsuit could not be afforded.