Pls help me with this, I can't figure it out

What country was south vietnam resist a communist takeover before the united states stepped in? a. germany b. france c. britain d. japan

Which of the following statements best describes the spread of communism in the years immediately following world war ii? a. the number of communist countries increased during these years. b. the number of communist countries decreased during these years. c. the number of communist countries stayed the same during these years. d. the number of communist countries increased in asia but decreased in europe. ( answer in the format above for me to understand)

What was a result of the industrial revolution in the united states