Here are the answers to your questions:
Question 1: Who led the communist revolution in China after WWII?
Correct Answer: C) Mao Zedong
Question 2: What type of government does Japan have?
Correct Answer: B) Parliamentary democracy
Question 3: How do the government systems of North Korea and South Korea differ?
Correct Answer: C) North Korea has a communist government; South Korea is a democracy
Let me know if you have any additional questions!