Answer:
Peer relationships are most know to negatively affect social health when the groups being formed are involved in risky or harmful behavior.
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It helps with executive functions, such as behaving in socially appropriate ways.
It can damage your health mood relasionships and the quality of life it has a bad effect on your physical and mental health physical activity plays a key role in managing stress
I am crossed between B and D. But i think D makes more sense