Which of the following illustrates structural discrimination? a. Those who are lowest in educational attainment exhibit the highest levels of prejudice against ethnic groups other than their own. b. Blacks in American cities are commonly confined to inner city ghettos where they receive poor educations, which in turn lead to poor jobs and high rates of unemployment. c. A man is selected over a woman for the same job on the assumption that women are less capable than men. d. A white manager refuses to hire a qualified black applicant on the basis of his race