The theme is A, a message about life and human behavior. Sometimes, the theme of the lesson isn't directly stated, but is implied throughout the story, so it can't be B. Opinions of the reader are opinions of the piece of literature, and have nothing to do with the literature directly. And the introduction is the beginning paragraph of the story, which the theme is displayed throughout the story, not just one part.
The correct answer should be more fair
Command economies are ones where the government interferes in order to create a sense of fairness and economic equality among citizens.