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': 'The following are the features of "dystocia dystrophica syndrome" except \nSelect and explain. \nA. They have normal fertility, B. The patient is stockily built with short thighs, C. Android pelvis is common, D. Often have difficult labour', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Dystocia dystrophia syndrome\nCharecteristic features\n\nShort\xa0\nStocky\nSubfertile\nAndroid pelvis\xa0\nDelayed menarche\nMasculine hairline', 'role': 'assistant'}]