What best describes prosocial behavior?

Prosocial behavior is best described as any act performed with the goal of benefitting another person. This definition encompasses a wide range of actions, including helping, sharing, donating, volunteering, and cooperating. The motivation behind prosocial behavior is often rooted in empathy, altruism, or a desire to promote the welfare of others, rather than personal gain.

In contrast, the other definitions provided do not align with the concept of prosocial behavior. Acts aimed at personal benefit do not necessarily contribute positively to others and can instead be self-serving. Similarly, acts of aggression in social contexts are inherently harmful and do not reflect a desire to help others. Lastly, behavior that avoids social interactions doesn't promote connection or support and is unrelated to the concept of helping or contributing positively to others' lives. Therefore, option C accurately captures the essence of prosocial behavior by highlighting its focus on benefiting others.