The reson you should know this is because it isnt all about weight. What if the person weighs 200 pounds.......it might not all be body fat a lot of it could e muscle
Explanation:
The muscles opposing the movement become the antagonists.
In a movement, like the back extension, the muscles that extend the back are the agonist.
The muscles that produce the opposite movement, which is back flexion, are the abdominals.
I am pretty sure it is D
I hope this helps you !!
