The correct answer is - created anti-American feelings in the region.
The American interventions in the Latin American countries was not seen very fondly by the majority of the people living there, and it backfired on the United States by creating a large mass of people with anti-American feelings. The interventions by the United States were not the best, and were relatively poorly performed, so instead of creating peace and bringing economic prosperity, it made more of a chaos in the already chaotic societies of Latin America.
