With Regard to Research on the Effects of Race and Social

With regard to research on the effects of race and social class on education outcomes,which of the following is true?

A) White students appear to do better than minority students until social class characteristics are controlled for; then white students have lower educational achievements than minority students.
B) When social class characteristics are controlled for,the same gaps in test scores between black and white students remain; black students are still less likely to graduate from high school and are more likely to be held back a grade.
C) White students do better than Asian American,Hispanic,and black students when social class characteristics are taken into account.
D) When social class characteristics are controlled for,test score gaps between black and white students shrink,black students have a higher high school graduation rate,and black students are less likely to be held back a grade.