When People with and Without Support Groups Are Studied,what Have

When people with and without support groups are studied,what have researchers found?

A) Support groups are the most important factor predicting social and physical health.
B) Having a supportive group of people around us is important to our psychological well- being but not our physical health.
C) Social support is important but mostly for those individuals who are at high risk for various physical or psychological disorders.
D) Having a supportive group of people around us is important to our physical health but not our psychological well-being.