16. A public high school can prohibit its students from wearing a t-shirt reading \"legalize marijuana.\" (a) true (b) false 17. In the case in which a student posted a racist \"prom-posal\" on his Snapchat account, the school was correct in suggesting that the student could be punished for his speech. (a) true (b) false 18. In Bethel v. Fraser, the Supreme Court was sympathetic to the argument that Fraser's speech could have been acutely insulting to teenage girl students and seriously damaging to its less mature audience, many of whom were on the threshold of awareness of human sexuality. (a) true (b) false 19. A U.S. appeals court recently held that a Colorado high school student's anti-Semitic post on Snapchat made off-campus was not disruptive enough to justify his expulsion. On which Supreme Court case did the court rely in reaching its decision. (a) Morse v. Frederick (b) Bethel v. Fraser (c) Hazelwood v. Kuhlmeier (d) Mahanoy v. B. L. 20. In Tinker, the school rule prohibited not only Mary Beth Tinker from wearing her black armband, but also prohibited students from wearing political campaign buttons and expressing other political messages. (a) true (b) false