They are similar because they both have a common ground and are both principal to their tribes and colonies.
The Monroe doctrine was a doctrine used to oppose European colonial in the United States. It was a united states policy that started in 1823 in the US. The US had pledged to eschew from European business and also wants Europeans to do the same in the Western Hemisphere.
Adams-Onis Treaty also called "Transcontinental Treaty" that started on February 12, 1819, this treaty was adopted to settle border issues which involves the Spanish empire and the United States that really helped national security. What really lead to this treaty was the constant border raiding by Seminoles out of Spanish Florida. This treaty in Spanish is "Tratado de Adam- Onions"
1) Manifest destiny.
2) it was a warning for European countries to stop colonization in the western hemisphere.
3)Florida became a u.s territory.
4)both were treaties that protected native American lands.
5) The Oregon country was split into the Washington and Oregon territories.
The correct answer here is the third option. Both of these were instrumental for increasing the territory and the influence of the United States. The Monroe Doctrine may seem paradoxical as it is an isolationist doctrine, but in fact it increased the American influence. With this the US promised to stay away from the affairs of the European nations but it will not tolerate their interference in the affairs of the western hemisphere and the countries there. So, with this the US expanded their influence to the who hemisphere. The Adams-Otis treaty expended the American territories as it was a treaty by which the United States acquired Florida.
C.) Both were actions to expand borders and U.S. influence
Explanation: In the Adams-Onís Treaty of 1819, Spain had to give up Eastern and Western Florida to the United States. In the Monroe Doctrine of 1823, U.S. President James Monroe insisted that Europe should stop trying to create new colonies in the Western Hemisphere. He warned that the United Sates would exert physical force if such attempts weren't ceased. Both were similar because they involved the United States gaining control of certain states and stopping other foreigners from settling.
Hope this helps y'all, please slide me Brainliest :)
The Monroe Doctrine may appear to be confusing as it is a neutralist principle, yet truth be told it expanded the American impact. With this the US guaranteed to remain far from the undertakings of the European countries yet it won't endure their impedance in the undertakings of the western half of the globe and the nations there. Along these lines, with this the US extended their impact to the who side of the equator. The Adams-Otis bargain consumed the American domains as it was an arrangement by which the United States procured Florida.