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: Gynaecology & Obstetrics
[{'content': 'Which of the following is not sexually transmitted \nSelect and explain. \nA. Lymphogranuloma, B. Genital herpes, C. Bacterial vaginosis, D. Syphilis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Bacterial vaginosis is not sexually transmitted disease.', 'role': 'assistant'}]