More than half of the deaths attributed to stroke or heart disease occur
a. within one hour of the onset of symptoms, after the person reaches the hospital
b. within one hour of the onset of symptoms, before the person reaches the hospital
c. away from home, within a few hours of the onset of symptoms
d. away from home, after a second heart attack or stroke
e. inside or near the home, within 30 minutes of the onset of symptoms.