What is one responsibility that is only for United States citizens?

Serving on a jury is a responsibility that is uniquely reserved for United States citizens. This civic duty underscores the importance of citizen participation in the legal system, ensuring that individuals who serve on juries can bring their experiences and values to the justice process. Jurors play a critical role in upholding the rights of defendants and maintaining fairness in legal proceedings, as they are tasked with evaluating evidence and making decisions based on the law.

While the other options involve important obligations and activities—such as paying taxes, voting in local elections, and attending school—these are not exclusively limited to United States citizens. For example, lawful permanent residents (green card holders) are typically required to pay taxes and can enroll in public schools, and they may also participate in some voting at the local level in certain jurisdictions. Thus, the specific act of jury service distinctly highlights the active role of citizenship in the legal framework of the United States.