This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'The most common differential diagnosis of hyper- thyrodism in a young female is - \nSelect and explain. \nA. Hysteria, B. Essential tremor, C. Anxiety neurosis, D. Parkinsonism', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]