Who advised president monroe that the united states should boldly speak for itself on its policy in the americas?

The correct answer is John Quincy Adams

This was all related to the idea of the Monroe Doctrine which was based around the idea that Europeans have nothing to do with the new world and whenever a European power tried to exploit and colonize people of the new world, the United States would be there to help. This helped many independence movements in the Latin America.

The answer should be europe