This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': "Thyroid eye disease is due to- \nSelect and explain. \nA. Thyrotoxicosis, B. Hypothyroidism, C. Euthyroidism, D. Hashimoto's disease", 'role': 'user'}, {'content': "Answer: A \nExplanation: *Thyroid Opthalmopathy, also called thyroid orbitopathy, is a disease of the orbit seen in Graves diseases (thyrotoxicosis), Therefore also called Graves ophthalmopathy. Ref: Kanski's Clinical Opthalmology 8th/e p.82", 'role': 'assistant'}]