A Nurse Is Reading About Positive Reinforcement with the Goal

A nurse is reading about positive reinforcement with the goal of increasing staff motivation.Which action would demonstrate positive reinforcement?

A) Every morning at shift change,thank each employee for an excellent job.
B) Rotate a monthly "employee recognition award" among all employees on the unit.
C) Wait until the annual performance review to recognize accomplishments.
D) Give spur-of-the-moment recognition to an employee who has accomplished a goal.