Concept:Social values are shared principles that guide behavior and maintain social harmony.Explanation:Altruism means selfless concern for others. It is a core social value that promotes cooperation and kindness. Other examples include honesty, discipline, and respect for human dignity. In contrast, primary goal, instinct, and aggression need are personal or biological drives, not social values. They do not serve as guidelines for socially acceptable conduct. Therefore, among the given options, only altruism qualifies as a social value.Answer:Option C – Altruism