The fact that us citizens elect representatives to make laws and implement public policies on their behalf is evidence that the united states government is what?

The United States is a Constitutional Republic since its citizens elect representatives to make laws and implement public policies on their behalf.

 A constitutional republic can limit the power the government has over citizens, thus, protecting the citizens. Apart from the United States, Iceland is another country that is a constitutional republic. 

the correct answer is d: "party organizers, volunteers, voters, and elected officials."

party organizers: individuals responsible for designing strategies in order to better execute the political campaign. this includes the candidate's public relations. volunteers: individuals responsible for raising awareness regarding the candidates running for office.voters: individuals who are convinced by volunteers that a particular candidate is the best option.elected officials: winning candidate and his elected team are a product of a successful political campaign.