which action led to the warren court case about students right to free speech in public schools?\n a protest…

which action led to the warren court case about students right to free speech in public schools?\n a protest against the vietnam war\n a lesson about birth control\n a policy requiring public prayer\n a speech criticizing integration
Answer
Brief Explanations:
The Tinker v. Des Moines Independent Community School District case was about students wearing black armbands to protest the Vietnam War, which led to a Supreme - Court ruling on students' right to free speech in public schools.
Answer:
a protest against the Vietnam War