Regarding the Research on Socialization and Health, the Safest Conclusion

Regarding the research on socialization and health, the safest conclusion is that

A) social support is important but mostly for those individuals who are at high risk for various physical or psychological disorders.
B) having a supportive group of people around us is important to our physical health but not our psychological well-being.
C) having a supportive group of people around us is important to our psychological well-being but not our physical health.
D) having a supportive group of people around us is one of the most important parts of maintaining our physical and mental health.