(Hint: Students do not have a First Amendment right to make obscene speeches in school.)
Matthew N. Fraser, a student at Bethel High School, was suspended for three days for delivering an obscene and provocative speech to the student body. In this speech, he nominated his fellow classmate for an elected school office. The Supreme Court held that his free speech rights were not violated.
The state controls what a school is required to do in order to pass its students. The other 3 options are a matter of the federal govt aka it being national issues, which means the state govts have no control over those issues or topics