Which is a responsibility for citizens of the United States?

Serving on a jury is a fundamental responsibility of citizens in the United States. When individuals fulfill this duty, they contribute to the judicial system and help ensure that legal processes are fairly conducted. Jury service is vital to maintaining the rights of defendants and upholding the principles of justice in a democratic society. This responsibility underscores the importance of civic engagement and the role that citizens play in the functioning of government and law.

In contrast, while paying rent might be a common obligation for many individuals, it is not specifically a civic duty tied to citizenship. Voting is indeed an important right for citizens, but it is classified more as a privilege rather than a responsibility, as not all citizens are required to vote. Volunteering, while valuable for community engagement, is also not mandated and should be seen as a personal choice rather than a formal civic duty.