The united states wanted to acquire new orleans in 1803 in order to:

To ensure American access to the Mississippi river and access to trade routes.

Explanation:

The U.S feared that France wanted to establish an empire in America, which would restrict the United States. Jefferson wanted to acquire New Orleans so, if the French did arrive in America, the U.S would still have access to trade routes and the Mississippi river.

d. promised it other land

b is correct

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