This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Symptoms and signs in psychiatry and classification, Subject name: Psychiatry
[{'content': 'Patient wants to scratch for itching in his amputated limb is an example of \nSelect and explain. \nA. Illusion, B. Pseudohallucination, C. Phantom limb hallucination, D. Autoscopic hallucination', 'role': 'user'}, {'content': "Answer: C \nExplanation: The phantom limb is the most common organic somatic hallucination of psychiatric origin. In this case the patient feels that they have a limb from which in fact they are not receiving any sensations either because it has been amputated or because the sensory pathways from it have been destroyed. Reference: Fish's Clinical Psychopathology, page 29.", 'role': 'assistant'}]