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': 'Deep transverse arrest occurs in ...... pelvis : \nSelect and explain. \nA. Gynaecoid, B. Platypelloid, C. Android, D. Mixed', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Android', 'role': 'assistant'}]