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 genital infections carries the highest risk for preterm delivery: March 2005 \nSelect and explain. \nA. Trichomonas vaginitis, B. Monilial vaginitis, C. Bacterial vaginitis, D. Human papilloma virus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Bacterial Vaginitis Bacterial vaginosis increases the risk of preterm bih and premature rupture of membranes. It is also associated with infection of the placenta (chorioamnionitis) and post-cesarean infection.', 'role': 'assistant'}]