Answer:
San Julian > location of Magellan mutiny
Cordoba > industrial center
exports > oil, petroleum products
Buenos Aries > costly mansions and lowly slums
Tucaman > Casa Historica
Tierra del Fuego > sheep and wool exported
Pampas > cattle are raised
The primary effect of the Dred Scott decision, based only on the option in this list, was that "Congress could not prohibit slavery," but mostly it meant that blacks weren't considered citizens and thus could not sue for their freedom.
Crises and alliances often bring about great moments in history, and one such example would be the alliance system that existed after German unification in the 1900s.
The answer would be c. luther