How does the presence of others impact an individual's response in emergency situations?

In emergency situations, the presence of others often leads to a phenomenon known as the bystander effect, where individuals are less likely to help a victim when there are other people present. This occurs for several reasons, one being diffusion of responsibility: individuals in a group assume that someone else will take action, which can lead to inaction. The more people who are present, the less personal responsibility each individual feels. Additionally, individuals may look to the behavior of others to gauge how to respond; if others are not reacting, they may interpret the situation as less serious or feel less urgency to intervene. This social influence can create a situation where everyone's hesitation collectively results in a lack of action, which underscores why option C accurately describes how the presence of others tends to inhibit willingness to intervene in emergencies.