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': 'All os the following are calcium channelopathies, except - \nSelect and explain. \nA. Episodic ataxia -1, B. Spinocerebellar ataxia -6, C. Familial hemiplegic migraine, D. Hypokalemic periodic paralysis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]