20.Which of the following best explains
why the white population of the
Oregon Territory grew tremendously
following the Lewis and Clark
Expedition?
A. No human being had ever lived
there before.
B. Whites wanted to leave the South
after the Emancipation
Proclamation.
C. The territory featured available
land and gold and settlers were
inspired to go west.
D. Railroads had not yet been
invented.
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