This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'Eating disorder with normal weight is? \nSelect and explain. \nA. Anorexia nervosa, B. Bulimia nervosa, C. Binge eating disorder, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Bulimia nervosaAnorexia nervosa - Under weightBulimia nervosa - Normal WeightBinge eating disorder - Over weight.', 'role': 'assistant'}]