Answer:
from guessing this should be A
Explanation:
the other choices make no sense
They want to show people of the younger gen about nature, trees, animals and etc in nature.
Economic growth depended upon the continued expansion of the empire.
I believe your answer would be:
<u><em>B: Americans even began talking of building a railroad all the way to the Pacific Ocean.</em></u>
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<em>Good Luck! =)</em>
