This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Thyroid, Subject name: Medicine
[{'content': "Which is not a feature of Grave's disease? \nSelect and explain. \nA. Hyperreflexia, B. Chorea, C. Lid lag sign, D. Late diastolic murmur", 'role': 'user'}, {'content': "Answer: D \nExplanation: There is aoic systolic murmur is due to hyper-dynamic circulation. No diastolic murmur heard The increased thyroid hormones lead to increase in intrinsic sympathomimetic activity. The positive reinforcement of this stimulation leads to brisk reflexes. Concomitant myopathy occurs but minus fasciculations. Chorea is rare but seen. The sympathomimetic action explains lid lag sign due over-activity of Muller's muscle.", 'role': 'assistant'}]