It is D) Slave trade in Washington I hope this helps :D
The significant land development that President Jefferson made was the Louisiana Purchase. The correct option among all the options given in the question is the third or the second last option. The Louisiana Purchase was created in the year 1803 by President Jefferson. It was an agreement between the United States of America and France
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How is this a history question-
D. The Spanish-American War resulted in all these territories becoming under the United States.
Answer:
The Mexican army attacked them. The main cause of the war was the westward expansion of the United States. All through the 19th century Americans believed it was their right to expand westward. At the time they believed they could conquer the people already living on the land and take it for the United States.
Explanation:
