Using Source 1, what geographic advantage did the U.S. gain with the purchase of the Louisiana Territory?

Question

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2 points
More ports along the Atlantic coast that allowed for faster transportation to and from Europe
Full control of the Mississippi River for quicker trade
Access for the first time to the Great Lakes that allowed for an increase in the fishing industry
Access to the Pacific Ocean for trade with the East

Answer 1

Full control of the Mississippi River for quicker trade