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': 'What is the name for the form of caries, which is rapidly\nprogressing? \nSelect and explain. \nA. Rampant caries, B. Nursing bottle caries, C. Acute dental caries, D. Chronic dental caries', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]