Answer:
The biological and socio-cultural aspects of the environment are related to health and population. Human beings, birds, vegetation, insects, animals, etc. come under biological aspects and rules and regulations, customs, traditions, religious places, etc. are socio-cultural aspects.
Personally, I think sport is all about having fun so D. But if your client is trying to loose weight, then A and B because you want to vary it!
Main reason I think is adrenaline.. gives you the strength to run from a traumatic event. fight or flight response. hope it helps
