The Bystander Effect Is Most Likely to Occur _____

The bystander effect is most likely to occur _____.

A) when someone is witnessing an emergency and there are several other people present
B) when someone is witnessing an emergency and no one else is present
C) in emergencies involving racial minorities where there are a large number of bystanders present
D) in memory studies in which bystanders did not remember as much about an emergency as the individual who was the victim