The correct answer is A. The United States bought land from France to expand the size of the nation.
Explanation
The Louisiana sale was a 19th-century international transaction in which the United States purchased from France a territory of approximately 2 million km². This transaction was a motivation for the United States because they wanted to control navigation on the Mississippi River. As a result of this international transaction, the President of the United States, Thomas Jefferson allowed Lewis and Clark to explore the newly acquired land to record all the characteristics of the acquired territory and map it. So the correct answer is A. The United States bought land from France to expand the size of the nation.
