An unconditioned punisher also known as a primary punisher is a stimulus that decreases the future frequency of a behavior without any prior learning or conditioning These are typically biologically significant events that organisms are innately predisposed to find aversive Receiving an electric shock from a faulty appliance Option A and Immersion in extremely cold water Option B are examples of direct physical sensations that are inherently noxious or aversive An individual does not need to learn that these stimuli are unpleasant they are naturally punishing from birth Exposure to extreme pain or temperature discomfort tends to immediately suppress behavior that precedes it Consuming food that is excessively salty or bitter Option D also falls under unconditioned punishers Our taste buds are naturally wired to find certain tastes especially in extreme concentrations aversive serving an evolutionary purpose to avoid harmful substances Infants for example will display clear aversion to overly salty or bitter tastes Experiencing social rejection after asking someone on a date Option C however is a socially mediated and learned phenomenon While the emotional pain or discomfort associated with rejection can be punishing the stimulus of rejection itself gains its punishing properties through an individuals unique learning history and associations with other aversive consequences eg loss of potential companionship social disapproval selfcriticism An infant would not inherently be punished by social rejection this is a complex social contingency that requires a history of social interaction and the development of selfawareness and social understanding Therefore it functions as a conditioned punisher not an unconditioned one