Question

The Louisiana Purchase was important to the growth of the United States because it

A brought California into the Union
B completed America's westward expansion
C gave the nation control of the Great Lakes
D doubled the size of the country

Answer 1

The Louisiana Purchase eventually doubled the size of the United States, greatly strengthened the country materially and strategically, provided a powerful impetus to westward expansion.

The answer should be D, Doubled the size of the country