The answer which is true concerning stretching techniques is B. you should always stretch before warming up. Stretching is quite important to do before any form of exercise, even the easiest ones, such as warming up, so as to prevent the possibility of hurting your body in any way. This way, your body will be prepared for what is going to happen to it next during the exercises you do.
Water, vitamins,proteins and i think calories.
What are your options? Cardiovascular activity is anything that will raise your heart rate. Strength training is an exercise that builds muscle.
Depending on the area there could be organs shutting down, there could be paralysis there could also be a need for amputation depending on the body part.