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': 'Green STD kit contains \nSelect and explain. \nA. Azithromycin, Cefixime, B. Secnidazole, Fluconazole, C. Acyclovir, D. Azithromycin, Doxycycline', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]