The correct answer is; negative punishment.
Further Explanation:
When the boy is acting out while his family is watching television he is sent to the room and not allowed to return and watch television until he can be good. Since he is unable to watch television and was punished for being bad, this is a negative punishment he received.
When the boy returned he was then good and changed his behavior and got to watch television since he was quiet and sat down. When someone receives a negative punishment this decreases the probability of the action being repeated when the stimulus is taken away.
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