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': 'True about Swyers syndrome \nSelect and explain. \nA. Gonads are ovaries, B. Mullerian ducts develop normally, C. External genitalia look like male, D. Excess testosterone.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Swyers syndrome = 46XY\n\nDysgenetic testis\n\nAbsent testosterone\xa0→ External genitalia looks like female.\nAbsent AMH\xa0→ Mullerian ducts develop normally.', 'role': 'assistant'}]