Which of the Following Is False Regarding Helping in an Emergency

Which of the following is false regarding helping in an emergency?

A) When a bystander is surrounded by passive others, he or she is unlikely to take action.
B) When it is clear that an emergency exists, bystanders usually help.
C) Whether the situation is clear or unclear, help is more likely when one bystander rather than a group) is present.
D) In an unclear situation, a group of strangers is less likely to produce help than a group of friends.