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': 'Dental cripple signifies: \nSelect and explain. \nA. A child who has many teeth., B. Disabled child., C. Special child., D. A child who is more susceptible to caries.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]