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: Pediatrics
[{'content': 'To avoid displacement of permanent teeth, finger sucking should be terminated by- \nSelect and explain. \nA. 8 years, B. 5 years, C. 3 years, D. 2 years', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 8 years The earlier the habit of digit sucking is discontinued after the eruption of the permanent maxillary incisors (7-8 yr), the greater the likehood that there will be lessening effect on the dentition.", 'role': 'assistant'}]