On what basis did the supreme court rule that the constitution protected students’ right to wear black armbands as a sign of protest?

The correct answer is the following.

The Supreme Court ruled that the United States Constitution student’s right to wear black armbands as a sign of protest by the First Amendment of the United States Constitution.  

We are referring to the case of Mary Beth Tinker v. Des Moines Independent School District in 1969. Tinker was a 13-year-old student who decided to wear a black armband in protest to the Vietnam War. The Court ruled that the school could not punish Tinker for her behavior as long as she did protest in a pacific way and did not mess with other people.

answer; ratification;

answer; transportation, store's,a whole lot more of ugly people,ect