Didn't see any options so I can't help
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
I think it is B because the other ones makes sense
True. There are a lot of good sites and hotlines to call for help.
C, because vegetables, dairy, juice, and fruit do not have whole grain. Grain is rice, wheat,etc.