The police arrest a group of people at a rock concert and search them. The police find no evidence of law-breaking during the search but take everyone's wallets and place the people in jail for "disorderly behavior." The people argue that their rights were violated. They say their behavior was normal for a rock concert, and they were no louder than anyone else there. They or their lawyer will likely argue their case using which amendment?

The First Amendment, which safeguards Americans' right to free speech
The Second Amendment, which safeguards Americans' right to bear arms
The Fourth Amendment, which safeguards Americans from unwarranted search and seizure
The Seventh Amendment, which safeguards Americans' right to trial by jury