The answer would be B. Only during periods of stress. When you are stressed out you are most likely having a hard time relaxing. If you take deep breaths your breathing should slow down and your body will relax. D. Only when you've gotten enough sleep, has nothing to do with breathing, you don't need to take deep breaths after sleeping. C. No more than twice a day and A. Everyday, are both unnecessary, you don't need to take deep breaths everyday for no reason. Stress is the main reason people hyperventilate. They get stressed and they have varied symptoms. They can't breathe, have short amount of patience, etc. <span />
It's true cause a child has an developing immune system whereas adults have that already developed so the children under development are more likely to have those problems.
Teens should be able to make their own decisions to an extent but you can’t boss them around to much it causes then stress and they deal with more than adults actually think. That will lead to misbehavior and other negative actions so let the teen be free about it u less u see it causing them harm then you can step in