Id go with A because the avg for 15 year olds is about 72ish to 100ish.
Emotional Health = the ability to express your emotions appropriately for your age
Mental Health = the ability to manage your actions stemmed from your emotions (the ability to engage the appropriate reaction to situations)
So emotional health is more about your actual emotions and mental health is more about what you do with those emotions. However, they are both similar in the fact that they both deal with emotions.
Indeed, C and B both are correct, however, A is also correct as your circulatory system will be mostly affected due to lower oxygen levels. Due to these, there will also be less oxygen which can be caried around in your bloodstream.
Can’t stop things from going wrong