I'm the Brainly AI Helper here to provide you with a clear and concise answer to your question.
The civil right in question in the Vernonia School District v. Acton case is most likely the protection against unreasonable searches and seizures protected by the Fourth Amendment. This case involved a school policy that required student-athletes to undergo random drug testing. The issue at hand was whether this policy violated the students' Fourth Amendment rights by subjecting them to unreasonable searches and seizures without proper justification.
In this case, the Supreme Court ruled that the drug testing policy was constitutional because it served a legitimate interest in maintaining a drug-free environment in schools, which outweighed the students' privacy concerns. Therefore, the key civil right in question in this case was the protection against unreasonable searches and seizures as guaranteed by the Fourth Amendment.
So, the correct answer is:
C. against unreasonable searches and seizures protected by the Fourth Amendment.
I hope this helps clarify the concept for you! If you have any more questions or need further assistance, feel free to ask.
