What is an example of an responsibility of a U.S citizen?

voting
paying taxes
serving on a jury
registering for selective service

One example of a responsibility of a U.S citizen is voting.

are you sure?

Yes, I'm sure. Voting is a crucial responsibility of U.S citizens. It allows individuals to participate in the democratic process and have a say in electing their representatives at various levels of government, including the President, members of Congress, and local officials. Voting is important for shaping the direction and policies of the country.