Early defibrillation has been called the critical link in the Chain of Survival because the time from collapse to defibrillation often is the key indicator of survival from sudden cardiac arrest. But the strength of the early defibrillation link depends on the strength of the the links that precede it.
Probably true since that seems to be what's happening
The options are likely positive or negative. I believe the answer is Positive.
Marathon race would not be considered as a team sport.
