You answered correctly: A

The OUTER FORESKIN is a layer of skin that is a continuation of the skin of the shaft of the penis. However, whereas the skin of the shaft of the penis near the base of the penis is in contact with the underlying penis tissue, the outer foreskin layer is in contact with the underlying penile tissue only when the foreskin is retracted; when the foreskin is not retracted, the inner foreskin lies between the outer foreskin and the penile tissue.
The outer foreskin is what can be seen covering the head of an uncircumsized penis, when the foreskin is not retracted. The outer foreskin layer contains nerve endings which respond to gentle touching during the early stages of sexual arousal. This helps to trigger an erection. The nerves of the outer foreskin contribute to the experience of penile stimulation, up to and including orgasm. These receptors are stimulated by stretching.




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