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: Social & Preventive Medicine
[{'content': 'Trachoma screening is done on which of the following age-groups? \nSelect and explain. \nA. <5 years, B. 5-10 years, C. 1-9 years, D. 5-15 years', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]