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': 'What is the drug of choice for treatment of trachoma? \nSelect and explain. \nA. Tetracycline eye ointment, B. Ciprofloxacin eye ointment, C. Doxycycline eye ointment, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The antibiotic of choice for treatment of trachoma is 1% ophthalmic ointment or oily suspension of tetracycline. Ref: Park 21st edition, page 283.', 'role': 'assistant'}]