Why does tinker v. des moines remain an important precedent-setting case?

a. it used symbolic speech in war protests.
b. it applied prior restraint in schools.
c. it established speech rights for students.
d. it stopped students from stating unpopular opinions.

Answer

It established speech rights for students.

Explanation

Tinker standard  first amendment schools was a decision by the united states supreme court that defined the constitutional rights of students in US.The students were thus allowed to wear their black armbands in protest of the Vietnam War. The Verdict reached by the court in Tinker v. Des Moines created a law that gave power to school systems. The Supreme Court held that the armbands represented pure speech that is entirely separate from the actions or conduct of those participating in it.

we need the map to answer the question