Answer:
C. right of citizens
Step-by-step explanation:
US citizens have rights and responsibilities, you can search them in the official webpage of the department of Homeland Security, but i can show you some examples, rights are things that the citizens can do, but are not obligated to do, like voting, applying for federal employment, and others, responsabilities are things that american citizens are requiered to do, like paying taxes, or defending the country in case of attack or war.
Running for office is a right that american citizens have, since it is not mandatory to run for office ever in your life.