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': 'A positive "Staliwohy\'s sign" is suggestive of which of the following conditions : \nSelect and explain. \nA. Twin pregnancy, B. Breech presentation, C. Vesicular mole, D. Low lying placenta', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Low lying placenta', 'role': 'assistant'}]