E: both B and D. The automobile and the mass assembly line
Answer: Technology developed in systems of interdependent parts.
Explanation: The human being, endowed with his intelligence, sought ways throughout history to overcome the obstacles imposed by nature. Thus, it was developing and inventing technological instruments in order to overcome difficulties. We may say that necessity is the mother of great technological inventions.
The answer is choice 4 "the purchase of the Louisiana Territory from France could lead to war with Spain"
The main way in which the presidential election of 1912 was different from previous presidential elections is that a party was created (the Progressive Party) purely for the purpose of electing a candidate (Roosevelt).
