what is one responsibility limited to United States citizens

a support and political party
b help with a campaign
c serve on a jury
d obey the laws

c serve on a jury

what do we call people who were taken from africa to america and sold into bondage

We call those people who were taken from Africa to America and sold into bondage "slaves" or "enslaved individuals".

One responsibility limited to United States citizens is serving on a jury. To arrive at this answer, we need to understand the concept and purpose of jury duty.

Jury duty is a civic responsibility that involves serving on a jury during a trial. A jury is a group of citizens who listen to the evidence presented in a court case and help determine the guilt or innocence of the accused. It ensures that individuals accused of crimes receive a fair trial by their peers.

Now, let's evaluate the given options in order to identify the correct answer:

a) Support a political party: While citizens have the right to support political parties and participate in political activities, it is not a responsibility limited only to U.S. citizens. Non-citizens can also engage in political activities such as fundraising or campaigning.

b) Help with a campaign: Similar to the previous option, helping with a campaign is not solely limited to U.S. citizens. Non-citizens can actively participate in political campaigns if they are legally allowed to work and reside in the United States.

c) Serve on a jury: This option aligns with the concept of a responsibility limited to U.S. citizens. Only citizens can be selected and summoned to serve on a jury.

d) Obey the laws: Obeying the laws is a fundamental responsibility for everyone residing in the United States, regardless of their citizenship status. It is not limited to U.S. citizens only.

Based on this analysis, the correct answer is:

c) Serve on a jury.