To Which of the Following Does "Socialism" Usually Refer

To which of the following does "Socialism" usually refer?

A) To the ownership of important sectors of the economy by the state, such that the benefits go to workers rather than to a few owners
B) To the furthest aspiration of Marxist hopes, in which workers would control production so equitably that the state could fade away altogether.
C) To the equal distribution of political power among men in a given society
D) To the equal distribution of opportunity to all members in a society