The bones are called clavicle
The answer is A. Good luck!
Definetly A. They work on the ability to supply oxygen to the lungs from the heart, to help them run.
High self esteem i believe it makes the most sense
If you starve yourself in a week, like by not eating anything, you will die in 3 days. Your body cannot survive without any food or water in a week! If you are thinking of doing it, don't!! If you want to loose weight try doing a healthy diet and exercise!
I hope this helped :)