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': 'Vaginal delivery is contraindicated in : \nSelect and explain. \nA. Central placenta prae, B. Previous LSCS, C. Eclampsia, D. Antepaum hemorrhage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Central placenta prae', 'role': 'assistant'}]