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: Skin
[{'content': 'DOC for LGV \nSelect and explain. \nA. Doxycycline, B. Ampicillin, C. Erythromycin, D. Ceftriaxone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Doxycycline', 'role': 'assistant'}]