The correct answer is Sigmund Freud. His studies on psycho-neuroses around the 20th century is considered to be the basis of psychology and psychiatry.
Following rules of behavior to help maintain order is part of social control - b.
Having social control in any society helps it be maintained and properly functioning which in contrast to not having such social rules of behavior where the workflow of such a society wouldn't go as planned.
Answer:
Diffusion of responsability.
Explanation:
This is a sociopsychological phenomenon in which an individual is less likely to take action or responsibility for an action or inaction when there are others present. The individual, thereby, assumes that others will take action.
This is what Kayla is thinking and experiencing when she sees the old man stumbling. She assumed that someone else would help the old man.