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': 'Gingiva in children \nSelect and explain. \nA. More keratinised more stippled, B. More keratinised less stippled, C. Less keratinised more stippled, D. Less keratinised less stippled', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]