D, because if you don't smoke but you eat junk you would still be unbalanced and if you don't work out your going to be large so its all of the above
This is false!
For example, let's take the situation in which you are stressed when you are not prepared for an exam and you have to take the exam. You can plan better your time and start preparing earlier or try to "stage" practice exams for yourself and the result will be less stress!
