The answer to this question is A. Jet streams
Jet streams are located near the altitude of the upper troposphere. It's a movement of wind that travels from one side of the planet hemisphere to another. The movement of jet streams will bring up different temperature of air which could influence the weather that exist in certain regions.
The advantages to the United States trail system is that everyone has the right to a trial and a lawyer. That is do to ensure the safety of everyone who is under American law. However, there can sometimes be prejudice of those that are in the jury. Such a racist.
President Wilson’s proposal to form the League of Nations was most weakened by isolationist sentiment in the US, which was filled with people who thought joining the League of Nations would result in the US getting dragged into more wars.
The Atlantic revolutions impacted the early modern historical developments in many ways. To elaborate the Atlantic Revolutions sparked a new era of new social organization such as the emergence of democracies and the spread of capitalism.