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: Unknown
[{'content': 'Which of the following leads to greenish discharge per vaginum - \nSelect and explain. \nA. Bacterial vaginosis, B. Trichomoniasis, C. Chlamydia, D. Ureaplasma urealyticum', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans- B i.e., Trichomoniasis o See above explanation', 'role': 'assistant'}]