How does this passage from the Truman Doctrine speech illustrate the Domino Theory?

In what year did vladimir lenin and the bolsheviks seize power in russia? 1885 1900 1917 1961

The fourteenth amendment how did the action resolve a longstanding conflict in post-civil war america? it defined the process for readmittance of the former confederate states into the united states of america. it ensured the right to vote to all male citizens of the united states, regardless of race, color, or prior servitude. it defined citizenship and related rights for african americans. it abolished slavery in the united states.

Which statement is the best summary of kim ii-sung’s point of view?