The first one is the correct answer
are there certain questions to this?
Answer:
progression
Explanation:
The principle of progression implies that there is an optimal level of overload that should be achieved
There are a total of nine essential amino acids. These are: Valine, Isoleucine, Leucine, Threonine, Histidine, Lysine, Phenylalanine, and Tryptophan.
It's based on opinion, but I would put that they won't start and get an addiction at an early age so it will be more difficult for them to start later in life.
