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
Answer:
Peer pressure and other things sometimes can make it hard for someone to decide to practice abstinence.
Explanation:
Cancer cells the branch of medicine concerned with the studying and treatment of tumor.