Which of the following was the question at the heart of the brown v. board of education case?

The main question at the heart of the brown v. board of education case was whether segregating white and black children in different schools was unconstitutional or not. It was ruled that the segregation of schools was unequal and this paved the way for integration and was a key turning point in the Civil Rights Movement. However, this only applied to public schools because they were the only state-controlled institutions.