This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Medicine
[{'content': "Which of the following is not a common feature of Anorexia Nervosa- \nSelect and explain. \nA. Binge eating, B. Amennorhea, C. Self perception of being 'fat', D. Under weight", 'role': 'user'}, {'content': 'Answer: A \nExplanation: presence of fear of fatness & absence of alternative causes of weight loss Ref - Harrison20th edition pg 98', 'role': 'assistant'}]