This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of Adrenal Gland, Subject name: Medicine
[{'content': 'All are features of MEN2B except? \nSelect and explain. \nA. Mucosal neuroma, B. Marfanoid Habitus, C. Medullated corneal nerve fibres, D. Meningioma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: MEN2B Medullary Thyroid Cancer with pheochromocytoma and associated abnormalities: Mucosal neuroma Marfanoid Habitus Medullated corneal nerve fibres Megacolon', 'role': 'assistant'}]