China is quite isolated because of surrounding mountains. Never seeing the other civilizations or hearing about them from nomads. It was difficult to travel there either way, one again because of the surrounding mountains, so no one was necessarily willing to venture out or into the area that was, at the time, China.
Bear in mind, I could be wrong. But I'm 98% positive that it is correct.
Answer:
I believe it's resented the destruction of the southern economy
A became slaves I am 90 percent sure
Uncle Tom's cabin. is considered to be a cause of the civil war is becuase the book spoke against slavery in which struck people emotionally to act against slavery.
The answer A and C i believe