Which of the following statements best summarizes the relationship between the united states and latin america during the 1920s?

a. the united states returned to its pre world war war 1 isolationism

b. the united states intervened in the latin america to protect u. s. economic interest

c. the united states sent troops to mexico to protect oil and mining interest

d. the united states showed its disapproval of the nicaraguan government by encouraging a revolution