Actually every single one is correct, A<B<C they all are factors in the decline of Sumer.
Answer:
collectivized farms & nationalized industry & commerce
established communes for people to live & work together
Explanation:
The purpose of mao's policies is to make all citizens to have an exact same living situation. He collectivized farms and made all the businesses in the country owned by the government so there is no private citizens able to take ownership of resources and accumulate wealth. He established communes for people to live & work together to ensure that all citizens have an exact same condition and make them easier to be organized
