Which statement best explains how the Lewis and Clark expedition was a result of U. S. Foreign policy?

The United States purchased land from France so it could expand the size of the nation

Explanation:

The statement that best explains how the Lewis and Clark expedition was a result of U.S. Foreign policy is that "the United States purchased land from France so it could expand the size of the nation"

This is evident in the fact that the Lewis and Clark Expedition that lasted between 1803 to 1806 was made after the Louisiana Purchase.

The purpose of the expedition is to establish a definite path through the newly acquired territory and develop an American presence in the territory before any other European powers attempt to claim the region.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others