4. Which of the following statement concerning “phantom limb pain” is most likely:
(A) Post-amputation pain can be easily treated by analgesia
(B) Phantom pain may enhance with time
(C) Phantom pain is the painful sensations referred to the amputation stump
(D) Pre-amputation pain increases the risk of phantom pain
(E) Phantom pain can be prevented by a preoperative epidural blockade