The American System was an economic plan that played an important role in American policy during the first half of the 19th century. Rooted in the "American School" ideas of Alexander Hamilton, the plan "consisted of three mutually reinforcing parts: a tariff to protect and promote American industry; a national bank to foster commerce; and federal subsidies for roads, canals, and other 'internal improvements' to develop profitable markets for agriculture".
The answer would be C. The great depression lost many people jobs becuase no one could afford expensive things. This was used as a way to give people jobs and to help people out of poverty.
I want to say it is D, because I believe it was in Harpers Ferry where the fight occurred and he lost his (I believe) 5 sons and his own life afterwards.
