Which action is part of being a responsible citizen in the United States?

Supporting the Constitution is indeed a key aspect of being a responsible citizen in the United States. The Constitution serves as the foundational legal document that outlines the principles and framework of the government, as well as the rights and responsibilities of citizens. By supporting the Constitution, citizens uphold the rule of law, ensure the protection of their rights, and contribute to the stability and integrity of the democratic system. This support can manifest in respecting the laws derived from the Constitution, advocating for amendments that improve governance, and actively participating in civic duties that promote constitutional values.

Other options reflect choices that do not align with responsible citizenship. Choosing not to vote undermines the democratic process and the opportunity for citizens to voice their opinions. Ignoring laws conflicts with the principle of living in a society governed by rules and regulations designed for the collective good. Disregarding taxes fails to recognize the financial responsibilities that fund public services and infrastructure vital to community wellbeing. Each of these actions represents a lack of commitment to the fundamental principles that promote a functioning democracy.