B, advocate. Being an advocate means you speak out for it, or that you show your support for something.
Answer: the correct anwer is A. A suit seeking to assert the interest of state citizens in retaining diplomatic relations with a foreign nation.
Explanation:
Under the Article III, section 2, the United States Supreme Court has original jurisdiction in all cases affecting ambassadors, other public ministers and consuls, and in which the state is a party. In option A, the state is trying to act in parents patriae which is to act as representative of its citizens thereby asserting their interests that is to say that the state is not a party in the case. In all other case the state is a party and has incumbency in the matter.
The important part of the question is that all citizens are required to vote (we can understand: in person), as opposed to only some citizens voting (this is the case when the congress votes: only some people vote on laws, and they represent the wider community).
This situation when all people vote personally and are not represented is called a) direct democracy.
16. An estimate is not a guess because an estimate is based on some previously held information.
17.Precise
19. Objective reasoning
20.Pseudoscience
I will post the rest shortly