Tracy suffered from severe nausea for the first three months of her pregnancy. In order to make it easier on his wife, her husband used to order Chinese take-out food three or four evenings each week. Tracy knew she had to eat in order to nourish the baby so she forced herself to eat the take out food. When her child was six years old, he wanted to celebrate his birthday at a Chinese restaurant and Tracy became ill at the thought of eating Chinese food. For Tracy, the Chinese food had become so strongly associated with nausea that the association remained all these years later. Which of the following explain why Tracy learned taste aversion for the Chinese food and not for the presence of her husband (who was also present when she ate and became nauseous)?
A. Biological preparedness
B. Classical conditioning
C. Food is a phobic stimuli
D. Operant conditioning
A. Biological preparedness
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