Answer:
the United States was a democracy and they did not stand for communism however Communists didn't want the people that they had control over to see how free a democratic government was so therefore they built an iron curtain to keep a democracy unknown from the people that Communists have control over.
The opium war led to expanision of western influence in china and caused great social and economical disruption, with the wars weakening the dynastic system and paving the way for uprisings such as the boxer rebellions. and as dar es exonomical disruption, upon loosing the war china was forced to pay out 21million dollars per the treaty of nanjing. hope this helps:)
I’m pretty sure it’s A ! Because the he was sold to the Spanish as a slave
Nationalism created a standoff between countries trying to prove who was better. This increased tension boiled over until Archdule Franz Ferdinand was killed.