People Often State That Racism Is Couched in a "Backstage

People often state that racism is couched in a "backstage'' manner. Which of the following statements supports this argument?

A) Minority groups that succeed are excluded from social programs meant for minority groups.
B) Black students are often relegated to less demanding curricular programs.
C) Racism results in the creation of a bamboo ceiling that prevents professional growth.
D) Affirmative action and profiling for national security constitute racism.