The answer is c more muscle mass
The answer should be A because they are the only one you could actually do it to. You can’t hurt a baby or a pregnant women and you can’t wrap your arms away a fat person.
The one that could be most closely associated with you health is exercise
is this a real question? let me guess you are a boy?
<span>"Biomechanics is the study of the structure and function of the mechanical aspects of biological systems, at any level from whole organisms to organs, cells and cell organelles, using the methods of mechanics," it states in the article i had for my homework. :)</span>