The firmness of muscles is called the muscle tone. http://www.shapesense.com/fitness-exercise/articles/muscle-tone.aspx
Umm not B, C, Between A and D I d saaaaaaaaay oh lol D he has increased his knowledge :P how did I not see that
Answer:
When signs of spontaneous circulation are seen.
Explanation:
You should only perform CPR when someone is unconscious and not breathing or not breathing normally. If they are breathing normally and unconscious, you should still call 911 and then place them in the recovery position.
<em>Hope this helps!</em>