Answer:
Suribachi
Explanation:
The first letter of each word makes Suribachi. Mt. Suribachi held special significance in the Battle of Iwo Jima because that is where the US Marines raised the flag
Your 2nd and 3rd options are the correct answers. Monarchies were not quickly changed into democracies because it was much more complicated to change a government. You can't do that overnight.
Naturalized citizens are mostly more politically involved and tend to participate in things like voting more. Naturalization has a positive effect on voter turnout. Naturalized citizens are often immigrants from areas where their rights are not respected so they move to other places where they are willing to participate in public affairs because the system suits them better.