Which of the following best describes the circumstances that led to Brown v. Board of Education?
a, Nineteen senators and seventy-seven representatives signed a document called the Southern Manifesto.
B, Orval Faubus sent the Arkansas National Guard to block African American students from attending white schools.
c, A state university would not allow an African American law student to attend an all-white law school.
d, An 8-year-old girl had to walk through a dangerous area to attend an African American school each day.