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': 'Testicular feminisation syndrome is associated with : \nSelect and explain. \nA. 46 XX, B. Presence of vagina, C. Primary amenorrhea, D. Sho stature', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Primary amenorrhea', 'role': 'assistant'}]