B) Preventing the spread of communism
The role of the united state in Vietnam war began after the world warII. US mission was to restrict the communist domination that was present in Vietnam government, this was because communism could easily spread to the Neighbouring countries which would result to a change in the balance of power throughout Southeast Asia.
A talkie was a movie that had talking in it. For most of the time movies had only music and no words. Well during the 1920s movies with dialogue came out. These became known as talkies and people from all around would come to watch these at the local theaters.
Well I can tell you that L'Ouverture lead the slave revolt in Haiti because I literally just took a quiz on that about 3 minutes ago. I really don't know about jean jacques. sorry
Prohibition, the attempt to halt the sale and consumption of alcohol in the 1920's, was unsuccessful. Americans continued to buy and drink alcohol supplied through a wide network of organized crime.
It would be battle of Leningrad where the soviets turned the Germans back and crushed them.