What was important about the Louisiana Purchase?

It kept the British off of the American continent.

It caused a debt crisis.

It encouraged Mexicans to become part of the United States.

It doubled the size of the United States.

Respuesta :

Answer:

The purchase doubled the size of the United States, greatly strengthened the country materially and strategically, provided a powerful impetus to westward expansion, and confirmed the doctrine of implied powers of the federal Constitution.

Answer:

It's D. It doubled the size of the United States.

Explanation: