Question

Which best explains the message the Monroe doctrine sent to other nations

Answer 1

Answer: is A, that the United States was powerful enough to stop new colonization in the Americas.

Answer 2

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be that the Monroe Doctrine sent a message to European powers that any further intervention in the Americas would be seen as an act of aggression, since the US felt that its interests were being threatened.