Answer:
a. no CPR
Step-by-step explanation:
Hands only CPR is better than no CPR.
The right answer is a, because conventional CPR refers to CPR using hands when the heart stops beating.
Additionally, the best way of CPR is made with AED, because is an devide that exerts eletric pulses to the heart, to reanimated.
So, hands only CPR is only better tha no CPR, because is not better than AED.