Answer :
In the excerpt from Tinker v. Des Moines that shows how precedent supports an argument, the answer is:
A. "In the absence of a specific showing of constitutionally valid reasons to regulate their speech, students are entitled to freedom of expression of their views. As Judge Gewin, speaking for the Fifth Circuit, said, school officials cannot suppress 'expressions of feelings with which they do not wish to contend."
Here's why:
1. This excerpt references Judge Gewin's statement from the Fifth Circuit, which is a legal precedent or previous court decision that supports the argument for students' freedom of expression.
2. By citing this precedent, the excerpt highlights how past legal decisions have influenced the interpretation of the law in similar cases, thus strengthening the argument for students' rights to express their views.
3. It demonstrates how legal principles established in earlier cases can be used to guide and support arguments in current cases, showing the importance of precedent in shaping legal outcomes and interpretations.