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: Physiology
[{'content': 'Tremors are seen in disorder of: \nSelect and explain. \nA. Basal ganglia, B. Pain pathway, C. Pyramidal tract, D. Parathyroid gland', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]