What was the Supreme Court's ruling in West Virginia Board of Education v. Barnette?
A. It was lawful to expel a student for speaking against the war.
B. Students could refuse to salute the flag for religious reasons.
C. Jehovah's Witnesses were allowed to pray at school.
D. During times of war, schools could require students to salute the flag.
E. The salute to the American flag violated the separation of Church and state.