Option C : Great Britain and Russia
The treaty of varsailles restricted Germany for example : having a great army and building their navy and stripping away their territories, making the then leaders of Germany upset as well as the German people. hence setting the stage for Hitler to take power and take Germany and the world into ww2
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 Greensboro Sit-In was a critical turning point in black history and American history, bringing the fight for civil rights to the national stage. Its use of nonviolence inspired the Freedom Riders and others to take up the cause of integration in the South, furthering the cause of equal rights in the United States.