How did the tariffs controversy expose sectional differences between the north and south? a - the north manufactured goods to sell mainly in the united states, while the south survived on exports. b - the north manufactured goods to sell mainly to the southern states, but the south preferred imports. c - the southern states manufactured cotton textiles to sell in the united states, but the north survived on exports. d - the southern states needed federal aid to build factories, and the north did not want to pay for it.