Im not entirely sure about this but I would guess A
The answer is what I'm assuming to be the second one, I've done research and iron affects the bone metabolism which in turn benefits strong bones. Treatment for iron deficiency can prevent blood clots. Over all the answer is the second list.
not doing enough physical activity · being too sedentary, ie sitting or lying down for long periods · having an unhealthy diet, eg eating too much or too little, ...
No, it must be dealt with professionally.