This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pathology
[{'content': 'MEN I syndrome has all manifestations Except \nSelect and explain. \nA. Hyperparathyroidism, B. Zollinger-Ellison syndrome, C. Prolactinoma, D. Medullary cancer thyroid', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Medullary carcinomas of the thyroid occur in MEN 2A and 2BMEN-1 is characterized by abnormalities involving the parathyroid (primary hyperparathyroidism), pancreas (Endoctine tumours like gastrinoma, insulinoma) and pituitary glands (prolactinoma)Robbins pathology 9e pg:1136', 'role': 'assistant'}]