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': 'Which of the folowing is not true about Rumination disorder? \nSelect and explain. \nA. Failure to thrive, B. Appears between 3 - 5 years of age, C. Regurgitation of food, D. No nausea', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This rare disorder occurs more commonly in males and usually appears between 3 and 14 months of age. It is potentially fatal; some repos indicate that up to one fouh of affected children die.', 'role': 'assistant'}]