Which of these situations represents a social exclusion factor?

Social exclusion factors refer to circumstances that lead to individuals being isolated or marginalized from broader social interactions and community engagement. In this context, isolation from family and friends is a clear representation of a social exclusion factor because it indicates a lack of essential social support and relationships that are crucial for emotional and psychological well-being. This isolation can contribute to feelings of loneliness and detachment from social networks, significantly affecting one's mental health and overall quality of life.

In contrast, the other options describe situations that generally promote social inclusion and connection. Social club membership, participating in community events, and involvement in team activities are all examples of behaviors that foster social interactions and community ties. These scenarios enhance one's social network, provide support systems, and encourage a sense of belonging, hence contrasting sharply with the isolation indicated by the correct answer.