Jenny is a little girl whose experience of pain is different from other children her age. She does not have quick reactions to pain that help her avoid painful situations, such as pressing a pin between her fingers or biting her hands. However, she is able to feel the prolonged pain from these injuries. Which of the following provides the most likely explanation for Jenny's responsiveness to pain?
A. Jenny's brain is unable to receive the neural impulses from all pain receptors.
B. Jenny's fast pathway does not function as well as her slow pathway.
C. Jenny's threshold for pain is low.
D. Jenny's body releases no endorphins.
Answer: B
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