B is the answer I believe
Because they were the country that had the most powerful weapons. (Nuclear Bombs)
Unrestricted submarine warfare, which became prominent in World War I, meant that submarines could sink any time of vessel at any time without warning. Before this, they had to surface first and place crews on lifeboats.
Judicial review is where they determine if a law is unconstitutional or not. this affected the role of the supreme court because the judicial branch aka supreme court reviews the actions of the executive and legislative branches
