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': "All the following are signs of intrauterine foetal death except: \nSelect and explain. \nA. Spalding's sign, B. Hegar's sign, C. Robe's sign, D. Halo sign", 'role': 'user'}, {'content': "Answer: B \nExplanation: Hegar's sign", 'role': 'assistant'}]