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': 'Shoest diameter of foetal skull is \nSelect and explain. \nA. Bitemporal, B. Biparital, C. Veicomental, D. Suboccipito bregmatic', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Bitemporal', 'role': 'assistant'}]