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': 'Most common breech presentation is? \nSelect and explain. \nA. Right sacroanterior, B. Left sacroanterior, C. Right sacroposterior, D. Left sacroposterior', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Left sacroanterior REF: Dutta 6th ed p. 376 Most common position in breech presentation is left sacroanterior > right sacroanterior.', 'role': 'assistant'}]