Answer:
I think B.the agreement to buy Lovely's Purchase from the Osage.
Democracy is a popular type of government as the people cast votes during elections to select their leaders.
<h3>What is Democracy?</h3>
This refers to a type of government where the citizens, eligible voters has the highest power as they select their representatives in government.
With this in mind, we can see that President Roosevelt was of the opinion that United States was the great arsenal of democracy and this can be taken to mean that they were meant to serve the people and also to ensure freedom all over the world.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
Read more about democracy here:
brainly.com/question/3710021
In the US?
California, New York, Florida