David Sees a Woman Who May Be in Distress While

David sees a woman who may be in distress while walking through a crowded festival. She is clutching at her throat as though choking, but no one nearby is assisting here. David springs into action to assist her because he is aware of diffusion of responsibility and realizes that __________.

A) people are more likely to intervene in an emergency if there are others present to share the responsibility of helping
B) people are less likely to act in an emergency if there are others present because they feel less responsible for taking action
C) when others do not act in an emergency, a bystander is less likely to define the situation as an emergency requiring action
D) in an emergency, people are likely to follow the lead of a single dominant individual in a group