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



A.
doubled the size of the country

B.
gave the nation control of the Great Lakes

C.
completed America’s westward expansion

D.
brought California into the Union

The correct answer is A. doubled the size of the country. The Louisiana Purchase, which took place in 1803, involved the United States buying a large territory from France. This acquisition effectively doubled the size of the United States and greatly added to its land and resources. It also opened up new opportunities for westward expansion and settlement.