Respuesta :
The Monroe Doctrine and the Adams-Onis Treaty were similar in regards to the fact that both were actions to expand borders and U.S. influence. The correct option among all the options that are given in the question is the third option. I hope that this is the answer you were looking for and it has helped you.
Your Answer:
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 :)