Answer:
c. plasticity
Explanation:
According to my research on studies conducted by various psychologists, I can say that based on the information provided within the question it is most likely plasticity that played a primary role in Jerry's improved academic performance. This is because this term refers to the ability for nerve cells to change through new experiences. Which is why Jerry's grades started to improve when he was taken in by his grandparents and his home life improved.
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