This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Primary Hypothyroidism is seen in all EXCEPT \nSelect and explain. \nA. Iodine deficiency, B. Iodine excess, C. Lithium, D. Bexarotene', 'role': 'user'}, {'content': "Answer: D \nExplanation: (D) Bexarotene # Causes of Hypothyroidism> Secondary.* Hypopituitarism: tumors., pituitary surgery or irradiation, infiltrative disorders, Sheehan's syndrome, trauma, genetic forms of combined pituitary hormone deficiencies.* Isolated TSH deficiency or inactivity.* Bexarotene treatment.* Hypothalamic disease: tumors, trauma, infiltrative disorders, idiopathic.", 'role': 'assistant'}]