How Were New Farming Communities in the Old Northwest Strikingly

How were new farming communities in the Old Northwest strikingly different from rural areas in established sections of the country?

A) Western farming frontiers were involved in a commercial cash economy from the start, while many established rural areas were areas of traditional subsistence farming.
B) While the market economy dominated the settled areas of America, the farming frontier remained self-sufficient for decades after settlement.
C) The transportation revolution that transformed the East had little impact in the Old Northwest.
D) Western areas industrialized quickly, while rural areas in the Northeast were slow to adopt the factory system.