Some examples of this were the Fugitive Slave Act, Preston Brooks's attack on Charles Sumner, and the Dred Scott decision (the part of it which said that African Americans could never be citizens). None of these events tangibly hurt the North or the South.
Sepoy Rebellion
Formation of the Indian National Congress
Formation of the British East India Company
Complete British colonization of India
Because the treaties were not true, after the signing of the treaty of verse there was the assertion of Nazism. The treaties were not really taken seriously as they should, they were just a way for some countries to come out of war and others to gain from it.
The answer is c because they expanded
Great Depression is the answer