I think that the correct answer is D.
War happened because there was the role of empire. great Britain, germany, Austria-Hungary and Russia all had empires. hope this helps you
Tariffs mainly benefit the importing countries, as they are the ones setting the policy and receiving the money. The primary benefit is that tariffs produce revenue on goods and services brought into the country. Tariffs can also serve as an opening point for negotiations between two countries.
Well imagine this :
1st scenario , you watch the parade with a happy smile surrounded by loving family
2nd scenario, you watch the parade behind a fence, hearing screams of cry and seeing murder happening all over the place
hope this helps,
James Madison is known as the "Father of the Constitution."