Which type of reinforcement is used when the nurse gives a sticker to a pediatric patient every time the incentive spirometer is used?

A. Social reinforcement involves praise, recognition, or other forms of social approval, such as verbal encouragement, which is not the case here. B. Activity reinforcement involves offering an enjoyable activity as a reward, such as playtime or watching TV, which does not apply here. C. Material reinforcement involves giving a tangible item, such as a sticker, as a reward for a desired behavior. This is the type of reinforcement used in this scenario. D. Negative reinforcement involves removing an unpleasant stimulus to encourage a behavior, which is not relevant here, as the sticker is a positive reinforcement.