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 sacrocotyloid diameter causing narrowing of pelvis is a feature of which type of maternal pelvis? \nSelect and explain. \nA. Android, B. Gynaecoid, C. Platypelloid, D. Anthrapoid', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Platypelloid', 'role': 'assistant'}]