B. Prevent injury
Always important
It would be all of the awnsers is what i think, so well D I'm pretty sure
False. You should incorporate many different areas of fitness. You may focus on running, but you should try other things like yoga, cross fit, etc. This can help you keep all parts of your body fit and healthy.
I hope this helps!
The individuals most susceptible to heat illness would be young children, elders, and obese people.