Answer:
Strength building is the performance of physical exercises which are designed to improve strength and endurance.
The answer would be A i assume, hope this helped !
<em>Your answer is:</em>
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B. Being at least 15 percent underweight.
Hope this helps C:
The body shivers, shivering is something your body does in oder to keep warm. It is moving the muscles around, and trying to heat you up.
