According to the research of Latané and Darley, which of the following situations would be the most likely in which someone would offer to help?

A) person on the side of the road with a flat tire during rush hour
B) person asking for help in a crowded stadium parking lot
C) person falling down coming out of an elevator with only one other person in it.
D) a student falling off a ladder outside a full classroom

According to the bystander effect, people are more likely to intervene and offer help when they are the only witness to a potentially dangerous or emergency situation. The scenario of a person falling down coming out of an elevator with only one other person in it fits this condition, whereas the other scenarios involve larger crowds that may lead to diffusion of responsibility and decreased likelihood of intervention.