Answer:
The answers a, b, c and d are correct.
Step-by-step explanation:
De jure segregation is racial discrimination that is enforced by law. Some examples of this can be the segregation of schools( there were schools for black people and schools for white people), drinking fountains for white people, lower salaries for teachers in black schools or the segregation of neighborhoods.
De facto segregation is a racial discrimination that is not enforced by law.It is brought about by social norms, preferences and prejudice. After the Civil Rights Act of 1964 ,which ended segregation, black people still were discriminated. They still have to sit at the back of buses, stand at the side of the road when boarding buses to make room for white people, students still suffered harassment in public schools, they still could not have good jobs, etc.
Busing also known as desegregation busing is the practice of transporting white and black students to schools within or outside their local school districts in order to reduce the racial segregation in schools and encourage equality. While affirmative action describes policies that protect and support members of disadvantaged groups that has been discriminated or still are in areas like education, employment, or housing. For example, there were higher education institutions that adopted policies which seek to increase the number of racial minorities in their institution.