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': 'Which among the following is implicated in causing Parkinson \nSelect and explain. \nA. Carbon dioxide, B. Ethanol, C. Manganese, D. Zinc', 'role': 'user'}, {'content': "Answer: C \nExplanation: Manganese, carbon monoxide, methanol, cyanide are known to cause Parkinson's", 'role': 'assistant'}]