Answer:
A. decreased risk of developing certain diseases
Explanation:
Benefits of regular physical activity
If you are regularly physically active, you may: <u>reduce your risk of a heart attack. manage your weight better. have a lower blood cholesterol level.</u>
The least likely explanation for this would be that they're training at different intervals, or one is training harder than the other.
The most likely reason is that the way the other person's genetics are most people cant gain muscle as well as others because of disease or their body structure.
Hope this helped!
DNA, or deoxy riboneucleic acid, is made of proteins.