Which describes a significant difference between the north and the south in the years leading up to the civil war? a. the north favored a protectionist tarriff on foreign goods, while the south did not. b. the north supported two major political parties, while the south supported only one major political party. c. the north had a system of railways, while the south relied only on road and river systems. d. the north grew its own food, while the south focused on cash crops and imported most of its food. e. the north did not support jim crow laws, while the south did.