Which of the Following Is an Example of Punishment

Which of the following is an example of punishment?

A) Certain police officers are given favored assignments when the department receives compliments on those police officers' work.
B) An employee's cell phone starts ringing during an important meeting and he is reprimanded by the manager for not turning it off before the meeting.
C) An assembly-line worker is docked if he gets to work late.
D) A nurse is given the day shift after working six months in the night shift without any patient and/or doctor complaints.