Concept:Socialism is built on collective ownership and achieving fairness in society.
Explanation:In a socialist system, the state or the community owns and controls the major means of production, including land, factories, and industries.
The main goal of socialism is to remove extreme economic inequality by distributing wealth fairly among all members of society.
Socialism encourages equal opportunity, meaning everyone can compete on a level ground, and equal outcome, meaning basic necessities are accessible to all.
As a political principle, it opposes the concentration of wealth in private hands.
Option A describes capitalism, which favours free markets and limited state interference.
Option B is also a capitalist feature, since private individuals, not the state, own productive resources.
Option C is contrary to socialism because socialism emphasises power and resources shared by the people, not a few elites.
Therefore, the key principle among the options is equality of opportunity and outcome.
Answer:D. equality of opportunity and outcome