What defines positive, constructive behavior that is the opposite of antisocial behavior?

The correct choice, prosocial behavior, encompasses actions intended to benefit others and contribute positively to social relationships and community well-being. This encompasses various behaviors, including helping, sharing, donating, and volunteering. These actions foster social cohesion and improve interpersonal connections and societal functioning, making it a clear counterpart to antisocial behavior, which tends to harm or disregard others.

Altruism, while closely related, specifically refers to selfless acts done for the benefit of others without expectation of personal gain, which falls under the broader umbrella of prosocial behavior. Social facilitation refers to the tendency for individuals to perform differently when in the presence of others compared to when alone, and community outreach involves specific programs to engage with and support the community, which while positive, does not encompass the broader definition of behavior that benefits others.