Answer:
A) Stimulants
Explanation:
I looked it up!
<em>"Methamphetamine is a potent central nervous system stimulant that is mainly used as a recreational drug and less commonly as a second-line treatment for attention deficit hyperactivity disorder and obesity."</em>
Hope this helped, and good luck on your assignment!
Hormones - a chemical realesed by the endocrine system in the bloodstream
<span>Chewing tobacco affects a runner's body in various ways, i don't think it affects muscle growth.</span>
Talk to someone about your feelings, do things that make you happy, have a balanced food diet
The veins is the part that holds the blood, mostly.
