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': 'Perinatal moality. MC cause: \nSelect and explain. \nA. Bih Asphyxia, B. Intra uterine infection, C. Bih injury, D. Anemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bih Asphyxia', 'role': 'assistant'}]