<prompt> An operant condition where paradigm pain stimulus is given to a child for decreasing a certain undesired behaviour can be classified as -Positive reinforcementNegative reinforcementPunishmentNegotiation  <response>: ReinforcementPositive reinforcement:- A reward is given on the performance of the desired behavior.Negative reinforcement:- On the performance of the desirable behavior, punishment is avoided.Punishment:- On performing an undesired behavior, an aversive stimulus paradigm pain in this question is given.Note-The basic difference between reinforcement and punishment is that reinforcement Positive or negative is to promote desired behavior, on the other hand, punishment is to decrease undesired behavior. 