In the 1986 Case of Bethel V

In the 1986 case of Bethel v. Fraser, which dealt with the students' choice of a commencement speaker, the Supreme Court made which of the following rulings?

A) parameters for defining indecency and obscenity are different on high school and college campuses than in the community at large
B) high school teachers have the same academic freedom rights as college professors
C) students do not lose their constitutional rights when they walk onto a high school or college campus
D) non-sanctioned or "underground" newspapers can be banned by high school principals
E) the administration of a public school is not required to tolerate speech that is inconsistent with the school's educational mission