Acountry with a government that deliberately places socialist principles into action is communist, like the european union communist, like china democratic, like cuba democratic, like iraq

Communist, like China.

Socialism is a set of political beliefs involving the way society should be organized, and communism is pretty much an extreme form of socialism.  That rules out the last two answers (because they involve democracy).  The first answer is ruled out because the European Union is not communist, and China IS communist.