Stella the giraffe has been trained to hold food in her mouth and pass it off to zoo visitors. She has been doing this trick almost every day for the last three years. According to the "instinctive drift" phenomenon, Stella is likely to
A. continue doing this behavior as long as she receives reinforcement.
B. eventually stop performing the behavior despite reinforcement.
C. get better at performing the trick over time.
D. require less reinforcement for the trick over time.
Answer: B
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