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
A tonsillectomy is a procedure to treat infection, and inflammation of the tonsils. This could be the first sentence :)
* Balance income and expenses *
