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': 'The use of pit and fissure sealant is contraindicated in \nSelect and explain. \nA. Arrested caries, B. Recalcitrant caries, C. Remedial caries, D. Rampant caries', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]