Law enforcement official Ailsa Carver was the first to respond to a 911 call from an elderly man suffering from a heart attack. Ailsa found this man in critical condition, and he would have died within minutes if she hadn’t given him proper treatment. What treatment did Ailsa most likely provide that saved him?
A.
She gave him blood.
B.
She administered CPR.
C.
She reduced his heart rate.
D.
She calmed his nerves.