问题详情

According to Paragraph 2, one reason why people chose to leave their homes in the Northeast was the fact that
A．factories did not pay workers enough money.
B．their families had moved to the Far West around 1840.
C．large cities were suffering from environmental degradation.
D．western settlements exhibited a culture similar to that in the Northeast.请帮忙给出正确答案和分析，谢谢！