Answer:
Unconditioned Stimulus: Eating fois gras
Unconditioned Response: Nausea
Neutral Stimulus/Conditioned Stimulus: Seeing or thinking about fois gras
Conditioned Response: Nausea
Explanation:
Taste Aversion happens when a specific type of food causes a person to feel sick even if that particular dish was not even the reason why that person felt those horrible symptoms. However, classic conditioning occurs and said person will associate those symptoms to that particular food from that point on. Just like Pavlov's dog would salivate when the bell rang, so will the person will feel sick everytime they see or think about the food that made them sick.