The Supreme Court case Tinker v. Des Moines School District dealt with a student's right to a lawyer when being questioned. the right to privacy when teaching about birth control. a policy that required prayer in public schools. students' right to free speech in public schools.

The correct answer is students’ right to free speech in public schools.

In this Supreme Court, the issue of whether students have protected free speech in the schools as a result of actions by individuals like Mary Beth Tinker. Tinker, and some of her siblings/friends, wore black armbands to school with the peace sign on them. This expression was used to show the students anti-Vietnam War stance. Tinker was then punished by the school. After that, she brought her case to the legal system.

The Supreme Court ruled that this type of freedom of speech is protect because it does not disrupt the educational process.