Which is not a significant weakness of the following refutation?
a. one of their arguments is that affirmative action is needed to maintain a level of diversity in our workplace and schools.
b. also, it has allowed minorities and women to acquire college degrees and get better jobs, which would have been impossible in the past (guernsey 15).
c. this argument is misguided because before affirmative action was put into effect, about 40% of women were already in the workforce (sobel 13).