How were african americans intimidated at the turn of the century

How did northem leaders try to encourage americans to buy goods made in the united states rather than foreign imports? a high taxes on imports to increase the cost of imported goods b low taxes on imports to increase the cost of imported goods c. high taxes on imports to decrease the cost of imported goods d. low taxes on imports to decrease the cost of imported goods e high taxes on imports to decrease the cost of manufactured goods

Ineed answers 5 and 6 on my social studies homework reply to this question i posted

Large igneous rock have been found on surface sedimentary bedrock in north carolina .which statement best xplains the presence of these boulders