The answer is B. Spine stretch
Spine stretch is an exercise to stretch your back bone, which mean your upper body, not the lower one.
NB :
Hip Flexor : To stretch your thigh
Calf stretch & Harmstring stretch : To stretch your lower legs
weight training can build stamina, improves strength, makes you faster, and just overall boosts your health. some sports even use weight training as a practice. for example, boxing, football, rugby, etc.
Not two people are the same way. Some people have different bone densities then others. Some people's bodies react to differently with food and exercise
B. cocaine
you just cant buy the others as a minor I beloeve
