If they are complaing about chest pain...
The answer would have to be D. Noise
(:
The answer is race I think
Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function so i would say that it is A but i could be wrong so good luck
This is partly true but migraines can also be caused by stress and anxiety.