Darley and latané observed that most university students failed to a person having an epileptic seizure when they thought there were four other witnesses to the emergency. the students' failure to is best explained in terms of

Diffusion of responsibility

Explanation

Diffusion of responsibility refers to a psychological phenomenon in which we tend to pull back and not help someone in a critical situation or any situation , just because there are other people around and we feel like someone else amongst these other individuals will do it.

Diffusion of responsibility lead to bystander effect where everyone stand and hope that someone else will help other than themselves.

We feel less pressured to help if there are many other people around.

we need the diagram to answer this correctly.