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: Forensic Medicine
[{'content': "NOT a sign of early pregnancy: UPSC 07 \nSelect and explain. \nA. Goodell's sign, B. Hegar's sign, C. Cullen's sign, D. Palmer's sign", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. Cullen's sign", 'role': 'assistant'}]