Which responsibility is unique to United States citizens?

Serving on a jury is a responsibility that is unique to United States citizens because jury service is one of the specific civic duties outlined by the legal system in the U.S. It is a foundational component of the American justice system, where citizens are called upon to participate in the legal process and help ensure a fair trial. This responsibility highlights the concept of civic engagement, as it requires citizens to contribute to the judicial process and uphold the rights and responsibilities outlined in the Constitution.

In contrast, paying taxes, voting in elections, and obeying laws are responsibilities that can also apply to non-citizens in certain contexts. For example, while tax duties apply primarily to citizens, legal residents might also have tax obligations. Furthermore, various jurisdictions allow non-citizens to vote in specific local elections, and everyone within a jurisdiction is required to obey laws, regardless of citizenship status. These distinctions underscore why serving on a jury stands out as a unique responsibility of citizens in the United States.