This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': "Vitiligo is associated with each of the following disorders except \nSelect and explain. \nA. Nelson's syndrome, B. Alopecia areata, C. Graves' disease, D. Addison's disease", 'role': 'user'}, {'content': "Answer: B \nExplanation: Nelson's syndrome is a potentially life-threatening condition that does not infrequently develop following total bilateral adrenalectomy (TBA) for the treatment of Cushing's disease Ref ganong's review of medical physiology 25e p987", 'role': 'assistant'}]