C. There were protests in many neighborhoods
The founder of communist ideology was Karl Marx.
The theory of communism was advanced by Vladimir Lenin.
It was xoined by Winston Churchill who described the Berlin wall that seperated east germany from west germany not allowing any citizen in the communist countires to escape and leave their tyrannical overlords for the free west.
The main causes of labor unrest after World War I included poor working conditions, income inequality among workers and low wages for the workers. After the war in 1919, there were more than 3,000 strikes, which caused more than four million people to quit their jobs.