This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep Disorders, Subject name: Psychiatry
[{'content': 'With regard to anorexia nervosa the following is true except: \nSelect and explain. \nA. Phobic avoidance of normal weight, B. Overperception of body image, C. Self induced vomiting, D. Menorrhagia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D ref: Ahuja, 4th/e p. 135-136 and 5th/e p. 149-156', 'role': 'assistant'}]