Which One of the Following Is the Best Example of Punishment

Multiple Choice

Which one of the following is the best example of punishment as psychologists define it?

A) After Norma spends a few minutes in the time-out room for hurting a classmate's feelings,she acts more compassionately toward that classmate in the future.
B) Kelly has been acting up in the classroom all year. Her teacher's frequent reprimands haven't made much of a difference in Kelly's behavior.
C) Leonard is a real distraction to his classmates,often burping in a way that makes other students laugh. His teacher places him in a corner where others can't hear him burping.
D) Whenever Marvin has trouble sitting still,his teacher has him run up and down the hall three times to release his pent-up energy.