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': "Features of Turner's syndrome is/are:a) Secondary amenorrheab) Genotype XOc) Infertilityd) Streak ovarye) Coarctation of aorta \nSelect and explain. \nA. bcde, B. acd, C. ac, D. bd", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]