问题详情

According to Paragraph 3, how did Southern plantations cause people to move west？
A．By teaching them the skills they needed to start their own farms.
B．By promising to supply them with agricultural produce for their journey.
C．By building factories that destroyed people"s farmland.
D．By severely limiting economic opportunities for small-scale farmers.请帮忙给出正确答案和分析，谢谢！