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': 'The maximum age for growth of lymphoid tissue – \nSelect and explain. \nA. 3–4 years, B. 5–7 years, C. 7–11 years, D. 11–14 years', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The growth of lymphoid tissue is most notable during mid-childhood.\nChildren between 4 and 8 years of age often have hypertrophied tonsils and large lymph nodes, which is infact a sign of lymphoid hyperplasia.', 'role': 'assistant'}]