Which of these findings cast doubt on the specificity theory of pain?

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All of these findings cast doubt on the specificity theory of pain. A suggests that there are no specific skin receptors for pain, contradicting the idea that pain is generated solely by pain receptors. B suggests that pain can occur even in the absence of an injured tissue, which the specificity theory cannot account for. Lastly, C suggests that injury and pain are not always directly linked and that there may be other factors influencing the experience of pain beyond simple tissue damage.

Which of These Findings Cast Doubt on the Specificity Theory