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: Dental
[{'content': 'Hailey Hailey disease is characterized by defect in \nSelect and explain. \nA. ATP2C1, B. ATP2A2, C. ATP2C2, D. ATP2A1', 'role': 'user'}, {'content': "Answer: A \nExplanation: Hailey Hailey disease : ATP2C1 gene defect\nDarier's disease : ATP2A2 gene defect", 'role': 'assistant'}]