Understanding Prosocial Behaviour

Prosocial Behaviour is defined as any voluntary action intended to benefit others. This broad term covers a wide range of helping actions.

While the question emphasizes acts done "without any personal interest, motive, reason," Prosocial Behaviour is the overarching category that includes such selfless acts, often referred to as altruism. It encompasses voluntary helping, regardless of the specific underlying motivation, which might include empathy or genuine concern.

Analyzing Behavioral Options

• Altruism: This is a specific type of prosocial behaviour focused purely on selfless concern for others, without expectation of reward. While it fits the description very closely, 'Prosocial Behaviour' is the more general classification.
• Nurturance: This refers to the act of caring for and encouraging someone's growth, typically in a parental or supportive role. It's more specific than general helping.
• Social Obligation: This describes behaviour performed out of a sense of duty or to meet social expectations. This implies a motive tied to social norms, contrary to the question's premise.
• Prosocial Behaviour (Option C): This term broadly covers all voluntary acts to help others, including those done without personal gain or motive, making it the most appropriate classification for the described act.

Therefore, the voluntary act of helping others without personal interest, motive, or reason falls under the definition of Prosocial Behaviour.