Walking, you tend not to move alot
I'm THINKING C because a again you normally inject in the arm and the bicep is part of the arm acctually maybe E!
The answer should be: D. AED training
Automated electronic defibrillator use is easy, but in actual medical practice, there is only a few pattern of heart rhythm that was shockable. AED can be available in many places but trained personnel might not present when it was needed.
When AED used by someone without training, the helper can be protected by Good Samaritan Law. But their help might worsen the patient condition.
The first to do so was Leonardo Da Vinci