I’m pretty sure it’s stress
Fear of children. Ped/o means child so any medical term with that in it has to do with kids.
Setting a balance of how much you would be eating would be a way that you could prevent a disorder of eating. Setting limits to how much you would be eating, and also, with this in mind, having some stand, and self control would also be a way to prevent eating disorder.
A) For it does not require a life long commitment, and it is not C) because it can be any substance not just tobacco!
Thus your answer is A) gradually but completely withdrawing substances from use !
Have a happy life !
:D <span />