I believe the answer is D but I wanna make sure

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)

Answer correct get brainliest and 20 points

What was one effect of the rise of factories during the industrial revolution