That would be the bubonic plague or the black plague for a more common name.
It failed because China is a land of the proletariat and the ruling party is a communist one while the fifth modernization was about introducing democracy. Since the party represents the working class and the will of the people in theory, democracy is against it since it would enable those who are against the party to also compete which would in theory mean that they are against the people.
It would be on how to handle and manage the world after the Second World War. After the war the allied powers were divided on how the world would look after and it resulted into conflicts and struggles and even resulted a Cold War between the two world's superpower which is the US and the USSR.
Answer:
d
Explanation:
i believe they were counted as a 3/5 of a person vote I THINK I BELIEVE