As a citizen of the United States in 1823, how could the Monroe Doctrine provide you with a sense of optimism regarding your country's strength and position in the world?

It will give me the optimism of the country being able to stand on its own as a sole entity without other country’s interference.

Explanation:

As a citizen of the United States in 1823, the Monroe Doctrine would have provided me with a sense of optimism regarding my country's strength and position in the world as a result of the Doctrine itself promoting and encouraging the United States to be on its own and not to be controlled or under any country. This will give me the optimism that the country is a top country who doesn’t necessarily need others to survive.

a would be the answer