Be more specific, please? Sorry, I don't have the question in any of my classes...
Hitler joined got involved into politics in September 1919
Answer:
During that time America was in a depression so it really boosted up the economy and brought advancement in the places where the gold was found and mined. Keep going on west was another affect. America kept moving west and expanding the land and train tracks.
The answer to this question is: B) <span>They could haul heavy goods and people more quickly.</span>