Answer:
Communism is a political and economic ideology that positions itself in opposition to liberal democracy and capitalism, advocating instead for a classless system in which the means of production are owned communally and private property is nonexistent or severely curtailed.
the existing communist states in the world are in China, Cuba, Laos and Vietnam. These communist states often do not claim to have achieved socialism or communism in their countries but to be building and working toward the establishment of socialism in their countries.