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: Pathology
[{'content': 'Perimolysis is \nSelect and explain. \nA. Tooth wear due to gastric secretion, B. Tooth wear due to bruxism, C. Tooth wear due to dentifrices, D. Peripheral blood cell destruction', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]