The 13th Amendment abolished slavery and the 19th Amendment gave everyone the right to vote in the 1920's. These two took care of the situation.
Answer: C) the study of the human past
Imperialism had fed into European tensions because of the high number of European countries competing for colonies all over the world.
A lot of the products America uses today comes from China, so the advancements they had meant that we could get better electronics and products to. Other places also were affected by their developments who buy things from China.
The Answer is B. Trade between Europe and byzantine empire.
