A dietician/nutritionalist, if that's one of your options :)
That is going to be C) adolescence because when one is an infant they don't know much and they are just learning, as a kid in our childhood. Kids just don't pay attention and want to do whatever. We would already know life skills as an adult so it is adolescence
The answer would be Lindsay starts a yoga group with several friends from school. More and more students join the group each week".
I hope this helps!
It means the completion or approval of a finished and definitive version of something.